Black Polypropylene Jewel Cases?

vbimport

#1

Has anyone ever tried the 3.8mm or 4mm thin Black Polypropylene Jewel Cases made by Linkyo?

http://www.supermediastore.com/product/u/supermediastore-3-point-8mm-single-disc-black-pp-poly-case-with-sleeves-200pk
http://www.supermediastore.com/product/u/4mm-slim-pp-poly-black-single-cases-with-sleeves-200-pack

I usually store my CD/DVD/BR discs in binders to keep them out of the path of strong light or sunlight. I’ve had a few discs killed by sunlight. But sometimes you just don’t want to have a big heavy binder on the table and I thought that one of these might be a “light tight” alternative for a single disc.

Anyone have any experience with them or something like them?

TIA