The first time I plugged my G1 into my iMac, it was recognized, no problem. I chose the mount selection, tossed some music on it, again, no problem. But now, every time I try to plug it in, my Mac is telling me that it can't read the disc and is asking me to revive and use the disk utility to fix it. I don't know what any of that does, and I don't want to screw up my phone. So i just close it and don't try to put music on there. Now, a day later, the mac won't recognize it at all, even when I properly try to mount it (interesting sentence there). Any suggestions?