Some months I backed up several files on to a CD-R disk. These files can be read by both my CD-RW and DVD drives with no problem. Today I added more files, but although the CR-RW drive will read all the files, my DVD drive will only read those recorded previously. All were burnt by clicking on the file icons and using the 'Copy to' command in Windows XP Home.
I am using 700MB Memorex disks. With the disk in my CD-RW drive the capacity is shown as 262MB with 252MB free space. In my DVD drive the figures are shown as 2.76MB and 2.76MB with no free space available.
Obviously I am doing something wrong - but what?
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