Game fails to dump?

[saxualcontent]

Hello! Recently I have been trying to dump my copy of Fragile Dreams using ClearRip. I have tried a number of different settings on clear rip, including turning off dual layers and both 1gb and max chunk size.
When I boot the ripped and combined iso file in Dolphin, however, I get an eternal black screen. I have checked the filesystem using Dolphin, and it reads with an error about the dump.
What am I doing wrong? I am using version 1.1.0 of HBC and the latest version of clear rip.

[MayImilae]

Unfortunately dumping isn't an exact science. The dump could have been bad, and the combination could have been bad. First, use max size, since this is probably not a dual core disk (if it throws up an error at 4GB then you'll know it's dual layer). After it's dumped, you'll have some files along with the ISO. One of them is a txt file with dump information. Open it up and find the hash, and google it. You should get a bunch of results on redump.org and gametdb.com about the game. If you do, it's a good dump. If you set it to max beforehand you shouldn't have to recombine, and dolphin can just run the ISO straight up.

[tueidj]

(05-06-2013, 04:54 PM)MaJoR Wrote: Unfortunately dumping isn't an exact science. The dump could have been bad, and the combination could have been bad. First, use max size, since this is probably not a dual core disk (if it throws up an error at 4GB then you'll know it's dual layer). After it's dumped, you'll have some files along with the ISO. One of them is a txt file with dump information. Open it up and find the hash, and google it. You should get a bunch of results on redump.org and gametdb.com about the game. If you do, it's a good dump. If you set it to max beforehand you shouldn't have to recombine, and dolphin can just run the ISO straight up.

Even single layer wii games are larger than 4GB. Do not use the max size option when dumping to a FAT drive, it WILL cause an error and fail. The most likely cause of the OP's issue is incorrectly recombining the chunks.
Comparing hashes is also a waste of time unless your wii has a modchip that hides read errors. The DVD drive is able to sense errors so if none appear while ripping it means the data is clean.

[AnyOldName3]

My Wii is completely unmodded except for the homebrew channel, and it's generated bad dumps before. While the Wii may find errors itself when games are played, cleanrip doesn't take the normal route of disk reading, as it makes the dump, and keeps the original disk encryption, which the Wii strips away when it loads data.

[tueidj]

The drive still performs normal DVD error correction/detection on ANY type of reads and reports any problems. The encryption is designed for security purposes, not robustness. How do you think GC read errors were detected, the discs were exactly the same format as the wii but without the encryption/signing.

[AnyOldName3]

The errors are detected once the file has been decrypted, as it appears as random data, which is hard to error-correct. That's exactly why the GC could detect errors - it never had to decrypt anything, so could do the error checking as soon as the data was loaded, whereas the Wii doesn't check before decryption.

As CleanRip never decrypts the data, it never gets to a point where errors can be easily be detected, so doesn't pick up errors.

I never said the encryption made the data more robust, as it does the opposite. I just pointed out that it was there as a way to show that cleanrip is completely different to normal disk loading.

Warning: at least some of this post is based on conjecture, but either way, you're partially to fully wrong.

[tueidj]

That makes no sense at all. GC discs aren't encrypted *nor* signed, so how did they detect errors as you describe? There is no possible way for the system to know if the data is correct once it has been returned by the drive, therefore the error detection must be performed there (regardless of the "route of disc reading".)
Cleanrip does detect read errors (reported from the drive), otherwise people wouldn't be reporting that they have problems dumping dirty/scratched gamecube games.