A booklet lists one duration while your player displays another. Before deciding that the recording is different, check exactly what each time refers to.
Compare like with like
Write down the printed duration and the displayed duration with their sources. Confirm that you are reading the same track and release. Some discrepancies may involve boundaries, rounding or an edition difference; the two numbers alone do not identify the cause.
Listen around the beginning and end if that is relevant to your question. Note audible introductions, pauses or continuing sound, without silently changing the catalogue to fit your expectation.
Preserve the useful uncertainty
If you cannot explain the mismatch, write a short note rather than selecting whichever value looks more authoritative. For example: “Booklet lists 4:12; this player displays 4:15 for the file in this folder.”
That wording lets you revisit the issue later and distinguishes an observed display from a claim about the music. It is especially helpful when arranging a listening session to a fixed length: use the version you will actually play, while keeping the publication’s printed information intact in your collection record.

