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Corrupt or invalid, attempting to work around, but succeeds?

Posted: Fri Nov 16, 2012 5:31 pm
by Rebes
Hi,

I've been trying to find the answer to this question for some time now...

In several instances, I've received one or more of the error "File ... is corrupt or invalid at offset ..., attempting to work around", but it saves an MKV that seems to playback fine, and no other errors occur...

In this instance, does this mean MakeMKV was successful in "working around" the corrupt section? Does it use the DVD error correction to do this? Or, is this a case where I might notice skips/glitches in playback? (I didn't check the whole title, just that it played, and I was able to skip through it, and the credits were intact) In the event that it was successful working around the corrupt section, wouldn't it be better to then print a line that says something like "Successfully corrected corrupt data at offset ..." or something to that effect?

Thanks for any answers!

Re: Corrupt or invalid, attempting to work around, but succe

Posted: Fri Nov 16, 2012 9:29 pm
by setarip_old
In the event that it was successful working around the corrupt section, wouldn't it be better to then print a line that says something like "Successfully corrected corrupt data at offset ..." or something to that effect?
For the sake of clarity, that's a wonderful suggestion ;>}





Re: Corrupt or invalid, attempting to work around, but succe

Posted: Sat Nov 17, 2012 6:26 am
by mike admin
Unfortunately the message means exactly what it reads - the program encountered a corrupt area (usually a mastering error) and will try its best to work around. It "works around" instantly but the workaround may (or may not) lead to failure several seconds later. So it's impossible to print the definite message at that time. What is certain, that if the file was successfully created and you've got no audio de-sync errors, then the workaround was successful.

Re: Corrupt or invalid, attempting to work around, but succe

Posted: Mon Nov 19, 2012 2:18 pm
by Rebes
mike admin wrote:Unfortunately the message means exactly what it reads - the program encountered a corrupt area (usually a mastering error) and will try its best to work around. It "works around" instantly but the workaround may (or may not) lead to failure several seconds later. So it's impossible to print the definite message at that time. What is certain, that if the file was successfully created and you've got no audio de-sync errors, then the workaround was successful.
Thanks Mike, that's exactly what I was hoping... I've had several cases where I got the corrupt message, but no warnings or errors, and the MKV seems to play fine.

I've also had a few cases where it said there might be audio de-sync issues at a specific playback position, but if I go and check that position and the A/V is in sync... (Usually checking a minute before to a minute after the time indicated)... Does that indicate that everything should be OK with that file?