I was thinking about making DVD-covers for Puggo's transfers, but then I thought of a more appropriate way to store the discs... CD tins (unlike the ones below there are some types that have a hub in the middle to actually hold the disc):

Granted, I don't know anything about 16 mm film, so I have no idea what information is actually on those labels (even Google's image search wasn't too helpful with that). It's just an idea though. Here are the labels at full size (about two inches in diameter when printed at 300dpi):