Currently in CRM Media Link and Note information is not available from front end ad-hoc query for Research Requests. The below out of box tables would need to be added the Constituent Source Query View.
ASSIGNMENTMEDIALINK
BANKACCOUNTADJUSTMENTMEDIALINK
BANKACCOUNTADJUSTMENTNOTE
BATCHREVENUENOTE
PROSPECTRESEARCHREQUESTCONSTITUENTMEDIALINK
PROSPECTRESEARCHREQUESTCONSTITUENTNOTE
PROSPECTRESEARCHREQUESTMEDIALINK
PROSPECTRESEARCHREQUESTNOTE
STEWARDSHIPMEDIALINK
STEWARDSHIPNOTE