Posted 30 April 2007 - 05:51 AM
Sounds like your hard drive is nearly full. OS X needs at least 15% free space to run smoothly and 40 GB isn't all that big to hold music and such. You can delete unneeded apps, files, print drivers, language files, cache files, log files and e-mail attachments, there may be more but I forgot them, to create some space. You can also try Erase Free Space... from Disk Utilities Erase tab. I suggest you get yourself a bigger external drive to work with recording music.