First of all, that doesn't sound good.
If the Regions are empty (no audio waveform visible), then it means that the GarageBand Project cannot find the audio files you used in that place. However if for any reason, the audio files were deleted (or corrupted), you should have seen a Dialog Window when you opened the Project that tells you what audio files could not be found, so you have a chance to locate them.
To see, if the audio files are still stored in the Project, you have to do a little bit of "surgery":
- Locate the GarageBand Project file in the Finder
- Control+Click on the file which opens a popup menu
- Select the "Show Package Contents"
- This opens the Project file (which is technically a folder
- Inside that folder is a Media folder with an Audio FIles folder inside that contains all the audio files used in your project.
If there are no files, then they got deleted and you pretty much out of luck
If the files are still there, and you recognize them select and hit the space bar, to use the OSX Preview feature to listen to a file), then you can save them.
Hope that helps
Edgar Rothermich - LogicProGEM.com
(Author of the "Graphically Enhanced Manuals")
http://DingDingMusic.com/Manuals/
'I may receive some form of compensation, financial or otherwise, from my recommendation or link.'
