There’s a difference between FLAC and ALAC, but not a very compelling difference. I don’t listen to these files outside the Apple ecosystem, so ALAC does the job.Due to ALAC’s A-lack of a stored MD5 checksum per-track, if you really need to use ALAC for whatever reason I would suggest that one of your backups be stored as FLAC. As an additional bonus, the improved compression efficiency of FLAC means that you’ll need less hard drive space to store it than a second copy of the library in ALAC.
Of course, please correct me if I’m wrong but I suspect that if Apple implemented proper FLAC support on their devices you probably wouldn’t want to use ALAC at all![]()