questions about Spider-Man backup

[drew22to375]

I made a backup of Spider-Man with Instant Copy. I took out all the extras etc. Now I wrote it to the hard drive as an image. In IC it said it was 4.31GB but when I looked at it on the hard drive it was only 3.9GB what is with that. also I couldn't find any AUDIO_TS folder. Everything plays just great tho..

[garryheather]

You might find some discrepancy between the file sizes and the space they take up on the disc - it depends what application you're using as to what it reports back, and your filing system could be adding quite a bit of overhead if you're using something that's not very efficient like FAT32.

Eg, if your filing system uses 32K chunks and you write a 29K text file to the disk, it will occupy one 32K sector on the disk (or possibly more if the drive is heavily fragmented) thus wasting 3K of disk space.

If your authoring package could import such a file, it would probably report it as being 29K in size, but Windows Explorer could list it as being 32K in size. When you're talking about file sizes in the Gb range like we are with DVD's, such discrepancies can be quite disconcerting !