Volume DH0 not valildated

[heatdave]

I teach at a Jr High and have been using a Video Toaster in an Amiga 2000 for over 10 years for our morning announcements.  It has worked great all of these years.  Now I am having problems that we could not save our credits pages.  I checked and sure enough the DH0 drive is completely full.  I went into it to try and delete some files to clear up some harddrive space.  Every time I try I get the message "Volume DH) not validated".  I do not know what to do to free up the space I need.

Please Help

Thanks

Dave

[heatdave]

Thanks for the info.  Now to ask for your suggestions.  I did finaly find DiskSalv but now I need to get it on to the machine.  I found out my floppy drive is having problems.  I do remember that it is the old single density 800K drive.  Can I swap this out with a standard PC Double Density 1.4meg drive?  Will it recognize the drive and can I use standard PC formated disks.  If that will not work that I do have another Amiga 2000/toaster that I can swap the drive with.  If I have to do that then the question is how to get the software on the disk as my PCs will not read and right to the Amiga formated disc.

If I can get DiskSalv to solve the problem then great.  If not then I assume I need to do the copy the drive off to another and then reformat the disk.  Well can I hook up a standard PC harddrive?  Will the Amiga recoginize it?  Can I and do I need to then reformat the drive to do the transferes?

One last possible path is I think that I have some kind of SCSI card in the machine.  Should I pursue trying to put a SCSI drive on it?

Thanks for the help

dave