[Zambyte]

Is it legal to copy DVDs that you check out of the library if you don't distribute it?

[prepend]

It’s as legal as ripping a dvd you own. That is it violates the license, but I think it’s fair use and has never been prosecuted.

It’s also pretty much impossible to detect unless you distribute.

Same as ripping a dvd from a friend.

[thrtythreeforty]

Not in the United States. In addition to the copyright violation, it's also a DMCA violation.