Simulating tape loop effects in Garage Band

My bad, Hangster,
You are correct. No, it hasn't changed while you weren't looking (unlikely that you would have let that slip by you).
I also don't use compressed files (always WAV or AIFF).
When I was double-checking importable formats, I saw that info stated by Apple in their GB Help.
So I stated it incorrectly (I have seen it stated in this forum that they are converted in GB3, and just forgot).
In another part of the Help files (a Support Article), it states:
"You can import AIFF and WAV files as long as they are 16 bit. If you import an mp3 file, it will be converted and stored in your project as an AIFF file."
So, I decided to double-check for myself, and it is, of course, true as reported here that they are converted to AIFF when they're imported to GB3.
It's also true that GB won't import files listed as ".MP3". They have to be ".mp3", a weird restriction that I have also seen reported here.
Thanks for the correction.

Thanks for taking the time to check. Things do change and my life doesn't revolve around checking GB features, so they can certainly change out from under me B-)>

As for the MP3 vs mp3, I posted a long explanation once, and failed to keep a copy to add it to the FAQ. It's not so much a GB fault as it is a system issue. Macs at the beginning of time relied upon FileType and Creator Codes. With OS X they began to respect filename extensions. If the file has a Filetype and Creator Code identifying it as an Mp3, the case of the extension won't matter. If they are lacking (as will happen with a file created on a windows system, or some other non-Mac friendly device), it won't have a Filetype and relies upon the extension, these are case sensitive.

That's an abbreviated 00:14 answer %-)>

Darn those "non-Mac friendly devices"!!
Thanks for the clarification, as always.

Well it seems one of the me's DID in fact add that bit about MP3 vs. mp3 to the FAQ. I guess I can't keep track any more. I don't think it says anything that I didn't say above, but it's probably written better:

http://www.bulletsandbones.com/GB/GBFAQ.html#PortableRecorderMp3s

Anyway, just adding this for completeness should anyone stumble upon this thread in a search.