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What region is libdvdnav 0x00e50000?

Regions: 02 libdvdnav: DVD disk reports itself with Region mask 0x00e50000. Regions: 02 04 05 libdvdnav: DVD disk reports itself with Region mask 0x00000000. Regions: 01 02 03 04 05 06 07 08 It's only playable in region 1. (Only the rightmost bit is zero.)

What does 0x00 mean?

A region 1 disk is coded 0xFE. Thus a region of '0x00' means it is playable in all regions. Most rippers alter the region to 0 when ripping, as historically one of the main reasons for ripping (or at least the main quasi-legal reasons!) was to defeat region restrictions, and there's no downside for them in doing so.

Is %02d-05-09 % day readable?

"%02d-05-09" % day instead of vars () variant might be more readable. Just for kicks, here's the super-compact Pythonic way to write this: