dvd software to shrink iso file? (not dvd shrink)

[quangdaika]

So I have this iso file that is 7GB. I can't use DVD Shrink for some reason to shrink it (something about invalid UDF file). Is there another software that can do this? thanks

 

[Fardringle]

That "invalid UDF filesystem" error means that some of the required files and folders for DVD video (usually the AUDIO_TS) are missing. In other words, it's an invalid DVD image and you'll need to make a new image before you can shrink/burn it.

 

[corkyg]

The reason DVD Shrink will not work for you is because an ISO file is not playable. It first has to be expanded to a playable DVD format. That is easy to do.

Once that is done, use DVD Shrink on it. It should work just fine.

Then, have DVD Shrink create a new ISO file from the shrunken playable DVD.

That's the only way I know how to do it with existing resources.