When converting FLAC to m4a (AAC) what is the gapless info?

[oceanorigami]

I'm seeing that once I convert FLAC files into m4a (AAC) it includes a Gapless tag of some sort.

What exactly is it? Surely it's not Gapless info embedded into the FLAC because Mp3tag shows nothing when I check the FLAC. Just slightly confused here.

[Spoon]

Re: When converting FLAC to m4a (AAC) what is the gapless info?

lossy encoders such as mp3 or aac have an encoder delay, that is an encoder introduced delay, the gapless info tells a compatible player how to skip this delay.