Corrupt JPEG Files

I bought an HP Photosmart 320 and found out too late that there was a bug in the firmware that caused problems when writing to large memory cards. I have fixed the firmware but I have over 100 photos taken before the fix that I would like to salvage. I have found many services that will recover deleted files but none that fix corrupted ones. If anyone has any ideas I would greatly appreciate it. Thanks.

As far as I know, once the files are corrupted, theres no way to fix them. I had a similar problem with a Canon camera. The SD card was a bad format or something along those lines and corrupted my first 100 photos or so until I realized that the card was bad. If the firmware was bad, sounds like it wasn't saving the files correctly in the first place, so not to likely they'd be salvagable.

Thanks for the post. The only reason I hold out any hope is I have looked at the binary content of the files and compared to working JPEG files and there only seems to be minor differences. When I try to open them using Photo Shop it says something like "Invalid Marker." If there was a piece of software that could locate the bad Marker and change it to a valid one it may allow me to view the files.

Binary content goes beyond my understanding. You should try contacting a computer science professor at a university near you and see what he has to say. Might be a good project for his students.