Hi jppackham this is just a helpful hint:
To save a quality scan: click the floppy disk icon in the top right of the window. Save it as PNG (NOT jpg because with scans the quality is worse and the size is bigger).
When you put the scans onto cdfreaks use the "manage attatchments" button when submitting a post to upload the scans. Much easier than using photobucket.
Your scan isnt great, i would like to see a full burn scan though, as it seems the quality is getting worse as the scan goes on. This might make the end of the disc unreadable.
Also, with Datawrite, one batch of discs could be great, another could be crap.