I experienced the same problem a few days ago. I also got mine as a Xmas gift and really loved it at first. It got so many good reviews, especially here on CNET that I had high expectations. The first problem I noticed was the short battery life, which only gave me at most 5 hours per charge. Then a few days ago at work I tried to plug my player via USB to my computer to charge. It gave me the same message then deleted everything in the hard drive. Yesterday, I tried to charge it via USB at home and the screen just kept flashing. I unplugged it then tried to use the AC adaptor instead. The thing wouldn't charge or even turn on! It's a complete disaster. I'm sending this back and now I'm thinking of getting an iPod...even though I've hated on ipods for many years. I only really liked two things about the S30: the design and the navigation. The 2.5" color screen, format support, and video capability is all standard on many similar players so I don't count it as much as a positive. I wish iRiver would come out with new HDD players since they're players are so reliable. Awesome sound, great battery life, and no problems.
I turned on my gigabeat the other day (given as a gift 2 me 4 xmas and BRAND new!) and I was loving it so much + it said the battery was low then all of a sudden I get this random error 4 message saying it has to reformat the drive and it wiped all my music/movies/pics etc that I had just spent like HOURS syncing to the device! I am really upset about this - I mean I have the 1 yr warranty so I have emailed toshiba to find out if they will send me a new one or something but is any1 else having this problem?? It happened a second time to me today when I was disconnecting the player from my computer! WHAT A PAIN! I am also really upset about this because I LOVED the demo videos and picture slide shows that came originally on the gigabeat and now they are gone!! Is there anyway I can download these again somewhere or anything?? I liked showing those to ppl when they want 2 see how the player works and the slide show was awesome 2 watch w/ my music :/ I also lost some of my music when my harddrive was wiped - I guess using an mp3 player as a backup storage for songs is not a good idea... HELP!!