[fladd]

Thanks for your comment!

In principle, you could indeed - even with the current FLAC container - have a single FLAC file in combination with a cue sheet. But I wanted more than this:

1. Something that is based on what people do already (e.g when you download an album from Bandcamp, you get a Zip)

2. Proper booklet support

3. Support for lossy albums (Opus)

4. An easy way to get to the individual tracks (most OS can open Zip files without additional software)

So in the end, having everything zipped up seemed the most straight-forward approach.

Concerning album-level metadata, all information is currently only inside the Zip file. In theory metadata could be attached to the Zip (I think you can add comments at the beginning of a Zip file without breaking the format). Could you elaborate what would be the added benefit of additional metadata?