Anyone having issues with audio clips?

I’ve imported several sound effects, music etc files from the asset store. After import it give me a unspecified error on some of them while others come in okay and can be played by outside programs like winamp. The trouble is, they do not show up as usable files in unity and when placed into a script to play, they do not play even if the code is correct. I was running low on space so I moved the projects to another partition and reimported everything. Still no joy. Is anyone else experiencing this? I’m using the most up to date version 5.1f3
Anyone know how to fix this?
Thanks!

Sounds like something about Unity’s audio file format support has changed. Sometimes, even a supported file format may not work depending on headers and compression settings. The easiest solution is probably if you open the files in a tool like Audacity and then save them as .wav files (signed 16 bit PCM is usually a good choice, and clear the tags). This may fix the problem even if they were actually wav files before. Don’t use a compressed format such as an mp3 or ogg vorbis, use the asset importer to select the compression settings instead.