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Thank you very much. So should I keep my subcode separate from the mdf file or should I combine the two? Which do you recommend?

Also sometimes when using alcohol 120, with securom discs, I get "disc read error at 0". This doesn't happen all the time, only some times. Should I dump the game again if I see this error since it doesn't appear all the time?

Separated compatibility is better, can be used as bin/cue, ccd/img/sub image and opened by programs as IsoBuster and CDmage. The major thing is understand that MDFs of CD discs won't match due to random errors in the subcode, nothing more. Once separated, main channel should match if the dumps are good (and should match IsoBuster, CDManipulator's... imgs if disc doesn't contain audio tracks).

Erroneous sector of CDs discs protected by SecuROM is in the postgap, the 4th sector from the end. This sector reminds the last sector of data tracks of PS1 discs without EDC in form 2 sectors and with audio tracks, looks very similar, a mode 2 sector with erroneous ECC data.

A read error doesn't sound good, even if sectors 0-15 are don't contain normally useful data in PC games, it's normally used only for console discs (header and whatnot of Saturn games, logo and license of PS1 discs...).

I was able to work around the read error in the beginning by re ripping. I have a question about that program that extracts subdata from mdf files. If I use it and create a new mdf file with a new sub file, will the mds file I initially created still be valid? Will I still be able to burn it with alcohol 120?

Also is subdata useful for anything? I know its important for copy protection but how about for games that don't have copy protection? For example, disc 2 of the chronicles of riddick escape from butcher bay doesn't have copy protection, so if I click get subdata in alcohol, will it be useful?

Lastly, when choosing a format with subdata for non copy protected discs or non securom discs, which one should I choose: mdf/mds or ccd/img/sub? I want to be able to burn these with subdata in the future and I know I can burn mdf/mds with alcohol 120 but how about ccd/img/sub? Can I burn that type of file with subdata without using clonecd? Can cd manipulator burn ccd/img/sub with sub file included? Will it use the subdata/sub file?

It's a lossless process, converting from MDF to img+sub (2448to2352) and reconverting img+sub to 2448 (2352to2448) and then renaming to MDF gives the original MDF file. And that .sub file can be replaced with the extracted by subdump and the MDS will be still valid of course.

Subcode data is mainly useful for multitrack discs, to detect accurately the gaps of tracks and imperative for these EUR PS1 discs protected by LibCrypt. For normal PC discs with just a data track even bin/cue is just fine, so perhaps ccd/img/sub (accepted by CDManipulator in RAW DAO 96 mode, by ImgBurn as well, but will ignore the sub and subcode will be generated by the burner) is the optimal solution.

I understand. So for securom protected pc games, I will use mds/mdf because of the protection. However for all other pc games that use protection I can use img/ccd/sub. I have a question: How come alcohol doesn't offer tages copying? Also what about the newer protections like solidshield or gameshield. An example is dead space 2 which uses solidshield and la noire which uses gameshield. Also the chronicles of riddick assault on dark athena uses solidshield and tages; though that game can be obtained drm free from GOG so it is less of a worry for me.

Also will cd manipulator use the sub file in img/ccd/sub. You said imgburn will ignore the sub file but will cd manipulator accept it?

CD Manipulator does support RAW DAO 96 burning, subcodes generated by the software (when no sub is available) or read from the sub file. ImgBurn is simply RAW SAO, subcodes generated by burner according to the cuesheet sent.

Regarding dumping of Tagès:

http://club.myce.com/showthread.php?t=51912
http://club.myce.com/showthread.php?t=89212

Thank you very much. Now I have some games that I have dumped. Are there instructions on how do I present these to the redump staff?

This subforum:
forum/11/dumps/

As template, but specifying more clearly what is mastering ring code, mastering SID code, toolstamp, mould SID code and additional mould text, layer from that code and we put <TAB> for any ammount of multiple spaces:
/viewtopic.php?t=9198

Taking this as example, would be this way:

https://redump.info/disc/29391/

Mastering ring code:
Sony DADC<TAB>5057288DVD 01

Mastering SID code:
IFPI LY33

Mould SID code:
IFPI AEW37

And because it's a single layer DVD, only there is codes in that layer, as general rule (certain DVD-5 discs can contain a dummy second layer with codes more or less readable depending on how the artwork cover these codes).

I know it's been forever since I posted in this topic but I have a dilemma. I've always dumped my games with alcohol 120 using img, ccd, sub for cds, and mds mdf for certain copy protections like securom. In both of these cases, I make sure to get the subchannel data when it comes to cds. However, I have a new case to deal with: Half Life the original which contains a data track along with 21 or 22 audio tracks. How do I dump this correctly? What are the current tools that people recommend? I used cd manipulator to get the data track but how do I get the audio tracks. Also I don't have a plexor drive so any specific methods for that drive, I don't think will work. On the guide there have been mentions of plexor drives.

Also my main point, how am I supposed to obtain the subchannel data of this game. My normal method of using alcohol 120 will not work. Should I just use the subdump program?

For ripping PC discs with audio tracks, ideally a real Plextor drive should be used, or at least a drive which supports the audio trap disc method to dump the entire disc into scrambled form, and process it manually. My Pioneer DVR-107D, 110D and Optiarc AD-7240S supports audio trap disc method via ejecting the tray by the emergency hole just fine. And my Lite-On LH-20A1P and LTR-48246S support audio trap disc too, but for that these drives have to be dissablembled and used externally to hotswap manually (for that I have many spare magnetic disc holders ripped from the top cover of dead drives) inserted disc without resetting the TOC, so drive thinks disc inserted is a CDDA and can be dumped into scrambled form without modifications.

For more or less *standard PC discs with audio tracks, the classic IsoBuster+EAC method once detected the combined offset should be fine, anyway.

There are currently 5 Half-Life discs of that region in the DB:

https://redump.info/disc/10506/
https://redump.info/disc/26040/
https://redump.info/disc/16573/
https://redump.info/disc/26001/
https://redump.info/disc/25966/

You cannot dump properly track 2 of /disc/26001/ with neither a real Plextor or a swappable drive. Anothers ones yes, assuming that last track isn't truncated by the offset when drive used lacks of overreading into lead-out hability (my Pioneer DVR-107D/110D and my Hitachi-LG GCE-8526B are conventional drives and they can read into the lead-out).

*: no mastering errors, no scrambled data sectors in the first audio track's pregap, no audio sectors in the data track and a generous amount of digital silence in the ending of last track.