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Re: JBK 6628 DVD Karaoke Disc (masks used?)

by bigboss97 :: Rate this Message:

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Wondering how did you do so many patches a day. Don't you have to patch the  DVD image and burn a new one each time?

If a single byte (bit) can mess up the whole song we could be dealing with a mask, just like hotdog. But previously, you were saying all 'T' become 'S'. Then I thought that could be 1to1 encoding (which should show pattern in repeating lyric).

btw, there are 2 masks used in hotdog files. One is stored in the beginnig of each song (song specific). One is static which we haven't found the location. Since it's static we reversed the operation and created the 2nd mask.

So, if you try a single mask and it didn't work try one more mask.

HTH
Phuoc Can HUA



jim75 wrote:
There's definitely timing code embedded, and seem like some sort of running sum/encoding because 1 byte change by 1 messedup the rest of the lyrics.
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