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Now do:

sarami wrote:It is nonsense to change behavior depending on CD-i or not.

Good luck and all the best!

<r><QUOTE author="reentrant"><s>[quote=reentrant]</s>I don't know if such rule (valid for CDi) should be applicable to all systems (especially IBM PC)...<e>[/quote]</e></QUOTE>

This rule is not affecting IBM PC at all.<br/>

<QUOTE author="reentrant"><s>[quote=reentrant]</s>Small suggestion: is it ...

<r><QUOTE author="sarami"><s>[quote=sarami]</s>To:superg<br/>
Thanks for the answer. I still have a question.<br/>
Redumper unscrambles the sector if sync is broken but msf and mode are normal. Why? Optical drive treats the broken sync sector as error, do not unscramble.<e>[/quote]</e></QUOTE>

Yes ...

redumper build_490 fixes the incorrect split for your Heroes 2, feel free to redump and it should match DIC.

<r><QUOTE author="sarami"><s>[quote=sarami]</s><QUOTE><s>[quote]</s>01_invalid_sync.0.pass<br/>
10_invalid_mode_zeroed_intermediate.0.pass<br/>
11_invalid_mode_non_zeroed_intermediate.0.pass<br/>
12_invalid_mode_non_zeroed_intermediate_last_byte.0.pass<e>[/quote]</e></QUOTE>

Can you explain from ...

<t>So, sectors in the range 299-1498 are zeroes when scrambled?<br/>
That would explain C2 errors in that range as drive is constantly losing traction reading monotone data sequences like that. Actually that's why scrambling was invented in the first place - to shuffle data around.<br/>
I've seen ...

<t>That disc is shifted 2 seconds into the lead-out, that's 150 sectors. <br/>
PLEXTOR can read only 100 lead-out sectors. ASUS with patched Rib's firmware can read unlimited lead-out sectors.<br/>
You have to either use audio trap disc with PLEXTOR to trick the drive into reading more or ASUS with ...

PAL PlayStation boots the disc just fine (and it's playable).

JP PlayStation doesn't boot the disc.

<r>Ok, couple more findings:<br/>
Indeed, Gekido has a backup libcrypt key in audio subchannel, <URL url="https://redump.info/disc/833/"><s>[url]</s>https://redump.info/disc/833/<e>[/url]</e></URL> updated.<br/>
Net Yaroze disc doesn't have mirror or backup keys, just 6 bits in 6 first libcrypt ...