This article relates to fields available in DISCO productions. Click here for a list of fields used in the legacy version of DISCO productions.
Default DISCO production fields as of January 2026:
| Field | Category | More Information About Field |
| Bates range of family | Production specific | Bates range of the entire document family. |
| Bcc recipients | Email Fields | Blind carbon copy recipients on an email. |
| Cc recipients | Email Fields | Carbon copy recipients on an email. |
| Character count | File Properties | The number of characters in the file, including spaces, according to the file properties. |
| Custodians | Custodians | All custodians associated with a document. |
| Deduplication hash | File Properties | Numeric value of a fixed length that uniquely identifies data. |
| Document type | Document Types | The content type of file a document came from. |
| Email in-reply-to ID | Email Fields | The Internet message ID of the reply email. |
| Email message ID | Email Fields | A unique ID for email messages. |
| Email received date | Email Fields | The date an email or calendar item was received. |
| Email received time | Email Fields | The time an email or calendar item was received. |
| Email sender (From) | Email Fields | The sender of an email. |
| Email sent date | Email Fields | The date an email or calendar item was sent. |
| Email sent time | Email Fields | The time an email or calendar item was sent. |
| Email subject | Email Fields | Subject line from an email or a calendar item. |
| Ending Bates | Production specific | Last Bates number assigned to the document. |
| Ending Bates of family | Production specific | Last Bates number assigned to the last document in an attachment range. |
| File author | File Properties | The person who created the file. A file can have one or no author. |
| File company | File Properties | Available company information extracted from MS Office and PDF documents. |
| File created date | File Properties | The date the file was created. |
| File created time | File Properties | The time the file was created. |
| File extension | File Properties | The file extension of the native file. |
| File last accessed date | File Properties | The date the file was last accessed. |
| File last accessed time | File Properties | The time the file was last accessed. |
| File last author | File Properties | Last saved by field value extracted from metadata of a native file. |
| File last modified date | File Properties | The date changes were last made to a file. |
| File last modified time | File Properties | The time changes were last made to a file. |
| File last printed date | File Properties | The date the file was last printed. |
| File last printed time | File Properties | The time the file was last printed. |
| File name of each attachment | Production specific | List of filenames of all attachments, delimited by ";" when the field has multiple values. |
| File names | File Properties | The file names of each instance of duplicate documents. |
| File paths | File Properties | The file paths of each instance of duplicate documents. |
| File size | File Properties | A file's size in bytes. |
| File title | File Properties | Available title information extracted from MS Office and PDF documents. |
| MD5 hash | File Properties | Document MD5 hash value (used for deduplication or other processing). |
| Normalized time zone | Production specific | The time zone in which all dates and times are presented in the production. |
| Page count | File Properties | The number of pages in a document. |
| Path to native file | Production specific | Path to native file. |
| Path to text file | Production specific | Path to extracted text or OCR. |
| SHA1 hash | File Properties | Document SHA1 hash value. |
| Starting Bates | Production specific | The beginning Bates number of the production. |
| Starting Bates of each attachment | Production specific | The first Bates number of each attachment, separated by a semicolon. |
| Starting Bates of family | Production specific | First Bates number of the first document in an attachment range. |
| Starting Bates of parent | Production specific | The first Bates number of the parent document. |
| To recipients | Email Fields | Recipients from the to line of an email. |
| Volume | Production specific | The volume label of the production currently being created. DISCO automatically increments the volume number using the production’s starting volume label. |
Additional DISCO production fields:
| Field | Category | More Information About Field |
| Additional custodians | Production specific | Owner of duplicative documents collected. The “Custodians” field contains both the “Primary custodian” and “Additional custodians” fields, separated by “;”. |
| Appointment duration | Calendar Event Fields | Duration of calendar event, expressed in hours. For example, a 30-minute appointment is “0.5”. |
| Appointment end date | Calendar Event Fields | The end date of a calendar appointment. This field is populated for .msg files with a MAPI Message Class property of "Appointment". |
| Appointment end date & time | Calendar Event Fields | The end date and time of a calendar appointment. This field is populated for .msg files with a MAPI Message Class property of "Appointment". |
| Appointment end time | Calendar Event Fields | The end time of a calendar appointment. This field is populated for .msg files with a MAPI Message Class property of "Appointment". |
| Appointment start date | Calendar Event Fields | The start date of a calendar appointment. This field is populated for .msg files with a MAPI Message Class property of "Appointment". |
| Appointment start date & time | Calendar Event Fields | The end date of a calendar appointment. This field is populated for .msg files with a MAPI Message Class property of "Appointment". |
| Appointment start time | Calendar Event Fields | The end date of a calendar appointment. This field is populated for .msg files with a MAPI Message Class property of "Appointment". |
| Attachment count | Document Relationships | The number of attachments for a parent file. |
| Bates | Bates & Doc IDs | Lists all Bates ranges for a document, delimited by “;”. |
| Bates prefixes | Bates & Doc IDs | Lists all Bates prefixes in a production, delimited by “;”. |
| Billing size (in GBs) | Ingests | Provides the size of the document at ingest for DISCO’s billing purposes. |
| Chat channel name | Chat Fields | The name of the channel. Will be a unique string for direct message and group direct message. For DISCO-parsed chat messages, it will be the list of participants |
| Chat message type | Chat Fields | The type of channel. Options are direct message, group direct message, public channel and private channel |
| Chat participant | Chat Fields | The sender of a chat message and/or to whom a chat message was sent. This also includes the channel members for a chat message sent to a channel. |
| Chat participant count | Chat Fields | The unique count of chat participants of a chat message |
| Chat recipient | Chat Fields | Includes to whom a chat message was sent. This also includes the channel members for a chat message sent to a channel |
| Chat recipient count | Chat Fields | The unique count of recipients of a chat message |
| Chat sender | Chat Fields | The sender of a chat message |
| Chat sent date | Chat Fields | The date a chat message was sent. For chat documents containing multiple messages, this is the date of the first message |
| Chat sent date & time | Chat Fields | The date and time the first chat message was sent |
| Chat sent time | Chat Fields | The time a chat message was sent. For documents containing multiple messages, this is the date of the first message |
| Chat source | Chat Fields | The chat application source of chat messages (Slack, Microsoft Teams, etc.) |
| Conversation count | Document Relationships | The number of emails in an email conversation. |
| Conversation date | Document Relationships | The date the email conversation started. |
| Conversation date & time | Document Relationships | The date and time the email conversation started. |
| Conversation index | Document Relationships | A unique identifier for the email conversation that is extracted from the email header. |
| Conversation time | Document Relationships | The time the email conversation started. |
| Custom metadata | Custom Metadata | Custom metadata that a user can ingest or overlay. This field returns a list of the field names of custom metadata fields that have any value. |
| DISCO date | Dates & Times | This field is the send date of emails and the last modified date of all other document types. |
| DISCO date & time | Dates & Times | The send date and time of emails and the last modified date and time of all other document types. |
| DISCO time | Dates & Times | The send time of emails and the last modified time of all other document types. |
| Document ID | Bates & Doc IDs | The unique number associated with each record (document) in DISCO. |
| Document note | Notes | The contents of the DISCO Document Note field. |
| Email conversation thread ID | Email Fields | A unique ID for a conversation thread. |
| Email delivery receipt | Email Fields | Delivery receipt request notification for email messages. |
| Email domains | Email Fields | The domain names of each sender and recipient of an email. |
| Email header | Email Fields | Internet header information from each email. |
| Email importance | Email Fields | Email flag indicating priority level set for a message. |
| Email read receipt | Email Fields | Read receipt request notification for email messages. |
| Email received date & time | Email Fields | The date and time an email was received. |
| Email recipients (To, Cc, Bcc) | Email Fields | The recipients of an email. |
| Email sensitivity | Email Fields | Sensitivity field from email messages. |
| Email sent date & time | Email Fields | The date and time an email was sent. |
| Family date | Document Relationships | The date of the parent document. For emails this will be the date sent and for non-emails it is the date last modified. |
| Family date & time | Document Relationships | The date and time of the parent document. For emails this will be the date and time sent and for non-emails it is the date and time last modified. |
| Family ID | Document Relationships | A unique identifier for the document family. |
| Family time | Document Relationships | The time of the parent document. For emails this will be time sent and for non-emails it is the time last modified. |
| Fields | Fields | This field outputs a comma separated list of all the user-defined field names that are not null. |
| File Company | File Properties | The company associated with the file from the file properties. |
| File created date & time | File Properties | The date and time the file was created. |
| File last accessed date & time | File Properties | The date and time the file was last accessed. |
| File last modified date & time | File Properties | The date and time changes were last made to a file. |
| File last printed date & time | File Properties | The date and time the file was last printed. |
| File name of primary instance | Production specific | The original name of the native file. |
| File names of additional instances | Production specific | File names of any duplicate documents collected. |
| File path of primary instance | Production specific | The file path of the primary instance of the native file. |
| File paths of additional instances | Production specific | The file path of duplicate instances of the native file. |
| File subject | File Properties | Subject field value extracted from metadata of a native file. |
| File Title | File Properties | Available title information extracted from MS Office and PDF documents. |
| Folders | Folders | The name of the DISCO folder(s) the document is a part of |
| Folders Count | Folders | The number of DISCO folder(s) the document is a part of |
| Has a value in any field | Fields | Whether the document has a value in any user-defined field associated with it. The value of this field can be Yes or No. |
| Has an attachment | Document Relationships | Whether the document has an attachment and is a parent. The value of this field can be Yes or No. |
| Has any Bates | Bates & Doc IDs | Whether there is a Bates number associated with this document. The value of this field can be Yes or No. |
| Has any custom metadata value | Custom Metadata | Whether there is any custom metadata associated with this document. The value of this field can be Yes or No. |
| Has any document note | Notes | Whether the DISCO Document Note field has any content. The value of this field can be Yes or No. |
| Has any hidden content | Hidden Content | Whether any hidden content types have been detected in the file, such as comments or revisions. The value of this field can be Yes or No. |
| Has any privilege note | Notes | Whether the DISCO Privilege Note field has any content. The value of this field can be Yes or No. |
| Has any redaction | Redactions | Whether any redactions have been applied to a document in DISCO. The value of this field can be Yes or No. |
| Has any redaction reason | Redactions | Whether any Redaction Reasons have been applied to a redaction in DISCO. The value of this field can be Yes or No. |
| Has any similar document | Document Relationships | Whether DISCO has found any similar documents. (See Article: Similar documents.) |
| Has any tag | Tags | Whether there is any tag applied to this document. The value of this field can be Yes or No. |
| Hashes (SHA1, MD5, etc.) | File Properties | A list of all hashes associated with a document. |
| Hidden content | Hidden Content | A list of the types of any hidden content found in a file, such as comments, revisions, macros, or hidden sheets. |
| Ingest session | Ingests | The automatically created ID of the ingest session. |
| Is a family head | Document Relationships | Whether a document has attachments and is the highest parent in a given document family. This applies to emails or documents with embedded objects. |
| Is a loose document | Document Relationships | A document is loose if it does not have a parent or a child. The value of this field can be Yes or No. |
| Is an attachment | Document Relationships | Whether a document is an attachment to an email. The value of this field can be Yes or No. |
| Is an inclusive email | Document Relationships | Whether an email includes all of the other communications in the thread. The value of this field can be Yes or No. |
| Is part of a conversation | Document Relationships | Whether an email is part of an email thread. The value of this field can be Yes or No. |
| Is part of a family | Document Relationships | Whether the email or file is part of a family, meaning it has attachments or is an attachment to an email. The value of this field can be Yes or No. |
| Is part of a production from this database | Productions | Whether the email or file has previously been produced from this DISCO database. The value of this field can be Yes or No. |
| Languages | Languages | The languages used in the file or email, including the relative percentages of each language used. |
| Meeting duration | Calendar Event Fields | The duration of a meeting in hours. This field is specific to .ics files. |
| Meeting end date | Calendar Event Fields | The date that a meeting ends. This field is specific to .ics files, as well as .msg files with a MAPI Message Class property of "Schedule". |
| Meeting end date & time | Calendar Event Fields | The date and time that a meeting ends. This field is specific to .ics files, as well as .msg files with a MAPI Message Class property of "Schedule". |
| Meeting end time | Calendar Event Fields | The time that a meeting ends. This field is specific to .ics files, as well as .msg files with a MAPI Message Class property of "Schedule". |
| Meeting start date | Calendar Event Fields | The date that a meeting begins. This field is specific to .ics files, as well as .msg files with a MAPI Message Class property of "Schedule". |
| Meeting start date & time | Calendar Event Fields | The date and time that a meeting starts. This field is specific to .ics files, as well as .msg files with a MAPI Message Class property of "Schedule". |
| Meeting start time | Calendar Event Fields | The time that a meeting begins. This field is specific to .ics files. |
| Object hash | File Properties | The logical hash used by processing to determine exact duplicates, irrespective of their family relationships. |
| Parent ID | Document Relationships | A unique identifier for the parent email. |
| Predicted tags | Tags | The tag names that DISCO AI predicts along with DISCO’s numerical scores (representing the predicted tag’s likelihood) for a document. (See Article: Using DISCO AI tag predictions.) |
| Primary custodian | Production specific | Owner of documents collected. The “Custodians” field contains both the “Primary custodian” and “Additional custodians” fields, separated by “;”. |
| Primary language | Languages | The primary language used in the the document or email. |
| Privilege note | Notes | The contents of the DISCO Privilege Note field. |
| Processing details | Ingests | Details from the document’s ingest session into DISCO. Processing details describe why an ingested file received its processing status. |
| Processing status | Ingests | Whether the document has processed into DISCO successfully. The value of this field can be Success, Failure, or Partial. |
| Productions | Productions | List of past productions names in which this document appears. |
| Record type | Production specific | The record type, such as Edoc, Edoc attachment, email, email attachment, hard copy, or calendar appt. |
| Redaction locations | Redactions | A list of metadata fields on which a metadata redaction has been placed for that document. |
| Redaction reasons | Redactions | The Redaction Reasons applied to a redaction in DISCO. |
| Reference ID | Production specific | Optional field that can be used to uniquely order documents. |
| Revision count | Hidden Content | Count of revisions extracted from metadata of native file. |
| Revision number | File Properties | Revision number is the number of times the document has been saved from the file’s properties. For example, Word documents will generally have a revision number. |
| Similar document count | Document Relationships | The number of documents that are considered similar to the current document, including the current document. (Article: Similar documents.) |
| Tag count | Tags | The number of tags applied to the document. |
| Tagged by | Tags | The names of reviewers who have tagged the document, followed by the email address each uses to log in to DISCO. |
| Tagged dates & times | Tags | The dates and times that a document was tagged. |
| Tags | Tags | A list of the tags applied to the document. |