Topic: Bonus Audio CD offsets

This is in the Games category, but it only has audio tracks? so shouldn't it be in the Audio category instead?

http://redump.org/disc/5107/

EDIT: Fixed

Re: Bonus Audio CD offsets

Yes, sure, fixed.

Btw, the naming is wrong - http://www.satakore.com/sega-saturn-gam … n-JPN.html (CD to the right), should it be changed?

Re: Bonus Audio CD offsets

Ok, also, why is this Audio cd listed with -294 write offset? hmm just so it has matching checksums?: http://redump.org/disc/5330/

And I still think it's strange to start 'aligning' audio data.. it gives offsets a new meaning: http://redump.org/disc/6695/.. if the track1 pregap data is already lost then maybe it's best to just remove this dump for now..

Re: Bonus Audio CD offsets

F1ReB4LL wrote:

Yes, sure, fixed.

Btw, the naming is wrong - http://www.satakore.com/sega-saturn-gam … n-JPN.html (CD to the right), should it be changed?

It could be or not. I thought about when I added it: probably it's better to take all audio bonus CD as (Bonus CD) because it's obvious that it's a music collection (or do you want to rename it "MusicColection"? big_smile).

My patch requests thread
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Re: Bonus Audio CD offsets

Jackal wrote:

Ok, also, why is this Audio cd listed with -294 write offset? hmm just so it has matching checksums?: http://redump.org/disc/5330/

I've made a suggestion about the proper offset for them - http://forum.redump.org/post/15657/#p15657 - but it wasn't changed, so maybe dumpers didn't like the idea.

Jackal wrote:

And I still think it's strange to start 'aligning' audio data.. it gives offsets a new meaning: http://redump.org/disc/6695/.. if the track1 pregap data is already lost then maybe it's best to just remove this dump for now..

I've already sent him a PM a few days ago with a suggestion to dump the whole 1st track using CD Reader/CD tool.

Re: Bonus Audio CD offsets

F1ReB4LL wrote:

I've made a suggestion about the proper offset for them - http://forum.redump.org/post/15657/#p15657

That's a better solution imho.. hope it will be changed to that.. at least the choice of offset can be defended then.

Re: Bonus Audio CD offsets

what would i do with that pregap?
paste it in comments?

regarding Akumajou Dracula X and generalized such situations - i see nothing wrong with it
i'd rather have one record with N offsets listed,
than N records of the same CD, each with different offset and each missing some samples

Re: Bonus Audio CD offsets

themabus wrote:

what would i do with that pregap?
paste it in comments?

Have you managed to get a good dump of the whole -150 to 0 range?

themabus wrote:

regarding Akumajou Dracula X and generalized such situations - i see nothing wrong with it
i'd rather have one record with N offsets listed,
than N records, each with different offset and each missing some samples

Looks like he means they should be redumped with +390 and +684 offsets. As I've said, they won't be any 'wronger' of it, because you don't know proper offset values for them, anyway.

Re: Bonus Audio CD offsets

Yeah.. that's what I meant.. if the difference corresponds with common write offsets then it's best to ass u and me that that's the write offset.. instead of using a custom offset..

Re: Bonus Audio CD offsets

Have you managed to get a good dump of the whole -150 to 0 range?

no - Plextor won't go further than -75 with invalid mode
Asus and Lite-On both freak out at about -142, each always at the same place

i think it's a white noise, btw - nothing important anyway

Looks like he means they should be redumped with +390 and +684 offsets. As I've said, they won't be any 'wronger' of it, because you don't know proper offset values for them, anyway.

yes, i agree
though it would be seldom we'd be able to tell actual offset

edit:
i agree, Jackal

Re: Bonus Audio CD offsets

shouldn't Tenbu Mega CD Special's offset be +13?
it's correction that was applied to get this output
that's how i understand this field anyway
leaving it @0 implies that no correction was performed,
it becomes like a magical value then with a special meaning (indicating real offset being unknown?)

Re: Bonus Audio CD offsets

I think we should remove offsets for all audio cd's because we don't have the real write offset. So it's best to put the offset that was used in the comments instead.. so we're assuming that 'EAC offset' was used in case nothing is mentioned.

edit: Done, but don't know if I missed a couple.. I don't remember how you can list only the Audio category discs (custom url).