Guides
SWR / OWR — writer
One line per songwriter: SWR for writers you control, OWR for others. Name, IP number, role (composer, author, arranger…), society affiliations, and ownership shares.
The exact field layout — positions, sizes, and formats — is defined in CISAC's CWR specification (CWR19-1070R1), available to CISAC members and licensees. The validator implements the full layout: drop a file on it and every SWR / OWR line is parsed field by field, with problems tied to the exact characters at fault.
Two free checks for your CWR file. Is the file correct? Every record, share and control total against the spec, each problem on its exact line. Do its writers match their registrations? Every writer cross-checked against public registration data, including works registered under another spelling or IPI. Nothing stored: check a file at cwrcheck.com.