I'm trying to compile a minimum set of metadata that an end-user would need for using ISO images from a ~15,000 CD-ROM /DVD collection. In particular I'm wondering about CD booklets and covers. They often contain lots of useful info and documentation related to technical environments and usage instructions. However, having to digitize them would add a substantial overhead on top of the actual imaging workflow. An other option might be to make scans of the actual CDs, which often contain useful info as well. This is what e.g. Internet Archive seems to be doing:
I'm curious how other institutions are dealing with this?