The old versions of Ghost assumed you had a floppy drive as your A: drive and this was the logical place to write an error log when booting from CD as you cannot write error logs to the CD or to the failing hard disk.
If you search this forum on your error number 29004 you will get a list of past postings where this error has been discussed. This thread: https://www-secure.symantec.com/connect/forums/error-29004-when-trying-create-image confirms that the 29004 error is a hard sector read error. What is not clear from your posting is whether this is an error caused by a defective CD if that is where you are restoring your image from, or a defective hard disk.
What puzzles me is that the sector numbers you have quoted are over 60Gb from the beginning of the disk, which suggests to me that your image is stored on the second partition of your hard disk, or you have a huge image and are restoring from a very large stack of over 100 CDs or a pile of over 15 DVDs.
Assuming my guess is correct, and this restore is from another partition on the hard disk, then I would suspect that your hard disk has suffered either a hardware failure, or the virus has corrupted both/all partitions. Either of these mean that you may not achieve a successful recovery and will have to rebuild the machine from scratch after possibly having to replace the hard disk.