Guides

CWR record types, field by field

Every line in a CWR file is a fixed-width record whose first three characters declare its type. These pages document each layout field by field — positions, sizes, formats, and what each field means — generated from the same spec tables the validator runs on.

• HDR — transmission header
• GRH / GRT — group header and trailer
• TRL — transmission trailer
• NWR / REV — work registration
• SPU / OPU — publisher
• SPT / OPT — publisher territory
• SWR / OWR — writer
• SWT / OWT — writer territory
• PWR — publisher for writer
• ALT — alternate title
• AGR / TER / IPA — agreements
• ACK / MSG — society response
• REC — recording detail
• PER — performing artist
• ORN — work origin
• EWT / VER — excerpts and versions
• COM — composite component
• INS / IND — instrumentation
• ARI — additional related information
• XRF — work identifier cross-reference
• Non-Roman alphabet records

Check a CWR file free — errors and warnings tied to the exact line, nothing stored: cwrcheck.com.