Following on from the below MP3 thread, we're uploading label material (licenced) to iTunes and are told "ISRCs are a requirement for uploading to iTunes" (and is a mandatory field in the iTunes Producer application used for uploading).
Now, this is in process of discussion as, being an optional code under Sony/Philips specs, many will know the fraction of releases that actually feature ISRCs.
Anyone encountered this? Or applied ISRCs retrospectively? (our owner code was allocated years ago, so that side is sorted).
I can only imagine how many versions of, for example, 'Caravan' and 'Somewhere Over the Rainbow' are on this jazz label's catalogue..!