How to handle unexisting CDs

I just ripped all the songs on the Alizée en Concert DVD taking the 48kHz LPCM track from the DVD. This album obviously don’t exist as a CD anywhere.

My first impression is that it’s doing okey as it stands.

There is no links between the studio version and the live performance.
No lyrics are mapped.
Composer is largely empty but I assume the composer of the studio version composed the live version as well. The rich metadata with multiple composers etc is as far as I know not editable by end users. Same goes for lyrics as far as I can tell.

Thank you for your work.