Two tracks in your collection both say “1.” That is not necessarily a duplicate or a tagging mistake. They may be the opening tracks of two different discs in the same release. A small change to your collection note can keep the sequence clear without renaming every song.
Start with the copy you actually own or the release information you can verify. Do not assume that a track list found elsewhere describes the same edition.
Use two fields instead of one long guess
Record “disc 1, track 1” and “disc 2, track 1” separately. A compact display such as 1–01 and 2–01 can be useful, but keep a note explaining the format. Otherwise the extra number may become another puzzle when you return months later.
For a hypothetical set, disc one might contain eight tracks and disc two five. Track 2–03 is the third track on the second disc; it is not automatically the third track of the whole set. Decide which convention your catalogue uses before sorting it.
Preserve the sequence supplied with the release
Copy disc headings and track titles as printed, then put personal abbreviations in a separate note. A second disc described as rehearsals or bonus material should not quietly disappear into the main album’s running order.
If the booklet and disc label disagree, record the discrepancy rather than choosing a correction from memory. Check another reliable record of that exact release if the difference matters. Our guide to checking a recording's version is a useful starting point.
Leave an honest space for what you do not have
If only one disc remains, label the set as incomplete. Do not infer missing track titles from another edition with similar artwork. A note such as “disc two not examined” tells a future reader exactly how far your description goes.
You can still keep a listening bookmark: “return to disc one, track six.” That remains useful even if your notes are not a complete catalogue.
Before finishing, sort the entries once and follow the resulting order. Does the first disc stay together? Can you find the start of the second? A collection record has done its job when it leads you back to the right sound, not merely when every row contains a number.