Songs playing garbled, skipping.
I opened iTunes tonight to find some songs (they all seem to be from 1 folder) skip/ play 1-5 seconds of garbled sound before skipping. Their times are also wrong (one song used to be around 5 minutes, it now says it's 0:32). I have approved my computer, reinstalled iTunes, logged in, copied files to the iTunes media folder but to no avail.
Help?
Windows, 10