CDDB Protocol Level 6

[mbenzi]

While it is nice to know a new version might out soon, It would also be nice to have the latest CDDB Protocol Level. I've notice during fuzzing matches I get some blank respones, I assume those are level 6 entries.

OrangeCD already does a great job with i18n of entries internally. How about extending it to the FreeDB.

Thanks the consideration.