what is the purpose of MediaCache folder on a Mac What is the purpose of /private/var/folders/zg/jjtx0_k94pdc5p5q6gcvf4900000gn/T/MediaCache folder? It looks like some sort of database. I noticed it gets updated while browsing quite often.

Excerpt from one of files looks like elvish. 

ÈÈ+˚Cªå¢jß…ΩˇáOÏ??’¸¯ëor≥Ã=-¥PÊ6°æ¥RÌKlà
¬ÿ/çßˇçf9¥Cë+™ÕôöOÌfÓ€ß3W e5uèOn‘~Ê∞µMp8‚oIîôTôˆJs;ÓëZ⁄Ó‰ì
It seems to be a disk cache for any media files (video, audio) you watch in browser. CachedMedia- seems to be a cached chunk of media data and diskcacherepository.plist is an index file of URL &lt;-> media chunk relations.