Ultimate Edition Forum

How do I check the md5sum of an already burnt iso disc? I know how to check the file, but need to know how to verify the disc itself. I usually use k3b and verify written data, but it doesn't always like to perform properly so I sometimes use a different burner that doesn't give me that option.

Thanks.

A file is a file. K3B generally tells you if the md5 is mismatched afterwards. You can still use it to check the disc .iso.

Far as burning, keep it to a low burn, 4x or lower, and you should be all right. If not, it's probably your burner.(hardware)

Xanayoshi wrote:A file is a file. K3B generally tells you if the md5 is mismatched afterwards. You can still use it to check the disc .iso.

Far as burning, keep it to a low burn, 4x or lower, and you should be all right. If not, it's probably your burner.(hardware)

Ok. I had a bad disc. k3b works fine. It said it was a blank disc, but apparently not. I cannot set it to burn at lower speeds as it will fail. It works fine on auto and starts at about 6.5x and never goes past 10.0x during burn. When starting burn it attempts to go 16x and says my burner doesn't support that and switches to 17x, but never goes faster than 10x during burn. I check the verified written data box and seems to work well. I was mainly asking because I thought k3b wasn't working right and wanted the method to verify disc manually. Thanks.

Tool wrote:

Xanayoshi wrote:A file is a file. K3B generally tells you if the md5 is mismatched afterwards. You can still use it to check the disc .iso.

Far as burning, keep it to a low burn, 4x or lower, and you should be all right. If not, it's probably your burner.(hardware)

Ok. I had a bad disc. k3b works fine. It said it was a blank disc, but apparently not. I cannot set it to burn at lower speeds as it will fail. It works fine on auto and starts at about 6.5x and never goes past 10.0x during burn. When starting burn it attempts to go 16x and says my burner doesn't support that and switches to 17x, but never goes faster than 10x during burn. I check the verified written data box and seems to work well. I was mainly asking because I thought k3b wasn't working right and wanted the method to verify disc manually. Thanks.

Yeah..all of that is the opposite of 4x

http://forumubuntusoftware.info/viewtopic.php?f=10&t=9099

Xanayoshi wrote:

Tool wrote:

Xanayoshi wrote:A file is a file. K3B generally tells you if the md5 is mismatched afterwards. You can still use it to check the disc .iso.

Far as burning, keep it to a low burn, 4x or lower, and you should be all right. If not, it's probably your burner.(hardware)

Ok. I had a bad disc. k3b works fine. It said it was a blank disc, but apparently not. I cannot set it to burn at lower speeds as it will fail. It works fine on auto and starts at about 6.5x and never goes past 10.0x during burn. When starting burn it attempts to go 16x and says my burner doesn't support that and switches to 17x, but never goes faster than 10x during burn. I check the verified written data box and seems to work well. I was mainly asking because I thought k3b wasn't working right and wanted the method to verify disc manually. Thanks.

Yeah..all of that is the opposite of 4x

http://forumubuntusoftware.info/viewtopic.php?f=10&t=9099

Yeah, I know. It's not giving me any issues though. I had a couple coasters that were failed burns, but they were reading blank, but wouldn't allow me to write to them. I just installed mint on my buddy's system that I burnt this morning and it's humming fine.