F1ReB4LL
Posts: 3395 Joined: Mon Jun 08, 2026 1:26 am
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by F1ReB4LL » Sun May 06, 2018 11:12 am
Any news about CD-i Ready format support? People ask me about it sometimes, the last person was iR0b0t
DIC needs to read the audiotrack + pregap with data starting from LBA 0, then to descramble data sectors (I think the data track in the pregap has its own track number somehow, so it's not really correct to leave all the data sectors as scrambled).
iR0b0t
Posts: 3397 Joined: Mon Jun 08, 2026 1:26 am
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by iR0b0t » Sun May 06, 2018 11:30 am
I tried DIC, it did dump it okay, but it descrambles data sectors. They should be left scrambled. Track mode is AUDIO.
PX-760A (+30), PX-W4824TA (+98), GSA-H42L (+667), GDR-8164B (+102), SH-D162D (+6), SOHD-167T (+12)
F1ReB4LL
Posts: 3395 Joined: Mon Jun 08, 2026 1:26 am
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by F1ReB4LL » Sun May 06, 2018 11:34 am
Ah, so it works now. Last month another dumper has shown me some DIC error logs for the Alien Gate (also CD-i Ready).
Track mode is audio, but doesn't the data part in pregap have its own track number in this case?
iR0b0t
Posts: 3397 Joined: Mon Jun 08, 2026 1:26 am
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by iR0b0t » Sun May 06, 2018 11:36 am
No, its numbered as track 01.
Isobuster misinterprets leading track number as 0 or 2
PX-760A (+30), PX-W4824TA (+98), GSA-H42L (+667), GDR-8164B (+102), SH-D162D (+6), SOHD-167T (+12)
sarami
Posts: 1762 Joined: Mon Jun 08, 2026 1:27 am
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by sarami » Sun May 06, 2018 12:06 pm
/viewtopic.php?p=24401#p24401
DIC can't read "no track 1" disc yet. Is this CD-i Ready?
jhmiller wrote: Bangai-O (Europe)
added: checking error of subQ track
iR0b0t
Posts: 3397 Joined: Mon Jun 08, 2026 1:26 am
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by iR0b0t » Sun May 06, 2018 12:12 pm
CD-i Ready Test dump (attached)
I firmly believe the data part should not be unscrambled.
PX-760A (+30), PX-W4824TA (+98), GSA-H42L (+667), GDR-8164B (+102), SH-D162D (+6), SOHD-167T (+12)
sarami
Posts: 1762 Joined: Mon Jun 08, 2026 1:27 am
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by sarami » Sun May 06, 2018 11:05 pm
Skipped being unscrambled.
And I noticed the format type of CD-i ready wasn't "CD-i"
Code: Select all
Session 1, FirstTrack 1, Format: CD-DA or CD-ROM
Session 1, LastTrack 5
Code: Select all
Session 1, FirstTrack 2, Format: CD-I
Session 1, LastTrack 3
I understood DIC can't dump CD-i multi track disc, not CD-i ready.
iR0b0t
Posts: 3397 Joined: Mon Jun 08, 2026 1:26 am
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by iR0b0t » Mon May 07, 2018 11:10 am
sarami wrote: Skipped being unscrambled.
It dumps fine now, thanks.
PX-760A (+30), PX-W4824TA (+98), GSA-H42L (+667), GDR-8164B (+102), SH-D162D (+6), SOHD-167T (+12)
F1ReB4LL
Posts: 3395 Joined: Mon Jun 08, 2026 1:26 am
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by F1ReB4LL » Tue May 08, 2018 2:49 am
Any chance to add the first 16+512? bytes from LBA 0 sector (45000 for "gd" mode) into maininfo.txt? So we wouldn't need to ask the dumpers to provide these for Saturn, Mega CD, Dreamcast dumps.
And have you thought to add the support for the swappable non-Plextor drives? DIC could read scrambled sectors with 0xBE command in this mode and people could use more common drives to dump properly.
sarami
Posts: 1762 Joined: Mon Jun 08, 2026 1:27 am
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by sarami » Tue May 08, 2018 4:44 am
Added LBA 0 of the sega disc into maininfo.txt
F1ReB4LL wrote: the swappable non-Plextor drives
What is this?
F1ReB4LL wrote: DIC could read scrambled sectors with 0xBE command
Yes, I confirmed ASUS BC-12D2HT could read it.