2hour SP DVD showing as 9+ gb on PC

[garretrevels]

Hey guys,

a friend of mine on another site has ran into a problem, so I though I'd ask here and see if any of you have had a similar problem and know a solution

So he recorded a 3/4 full or so DVD with his DVD recorder in SP mode on a regular DVD-R (not a DL) when he goes to put it on his pc under the disks properties its show it correctly as being 3.4 gb but when it is shown in windows explorer the properties of the video ts folder show it as being 9.6 gb

I know its an odd thing to happen, but do any of you have any idea as to what may be going on or a way to fix it

[jagabo]

Files can "overlap" on a DVD. The same data can be part of two (or more) files at the same time.

[BobK]

I know its an odd thing to happen, but do any of you have any idea as to what may be going on or a way to fix it

Does the disk play? Is there some other problem that needs to be fixed other than explorer showing the size wrong? If not then it probably doesn't need to be fixed.

[garretrevels]

yeah the disk plays, but he wants to share it online

so say if he were to make a torrent it would be 9.6 gb to download insted and with no lightning fast connections and in a torrent community that you need to keep a ratio it wouldnt be very efficient for anybody

I heard of a few people having similar problems (also I forgot to mention he tried it on multiple pc's with the same result)

He's also never had this problem himself and has been doing the same stuffover and over without this happening, so would this fall under just being an anomaly?

[GeorgeW]

How does he copy it to his hard drive? And can you list the entire contents of the VIDEO_TS folder on the hard drive?

Regards,
George

[jagabo]

He can use DVD decryptor to save the entire DVD as a 3.4 GB ISO file. Or he can extract individual titles using IFO mode. Using IFO mode he will find that one of the files is the raw recording, the other is the edited version (he probably edited the video to cut off junk at the beginning and end, or to remove commercials). Since any particular segment of the DVD-R can't be written to more than once, editing creates an entire new directory entry which references the video data already stored on the disk.

For example, say he recorded a 90 minute movie in 2 hour mode. After recording there is a table of contents entry that says there is one file that runs from 0 to 3.4 GB on the disk. Then he decided to cut .4 GB off the end of the video to remove some ads. The DVD recorder can't copy the first 3 GB of the file over again, the disk isn't big enough. What it does is create a new TOC entry that indicates a file that runs from 0 to 3GB. It "reuses" the first 3GB of the original file. Now you stick this disk in the computer. You see two TOC entries, one for a 3.4 GB file and one for a 3 GB file. It looks like the disk has 6.4 GB. But the two TOC entries are pointing to the same recorded data.

[garretrevels]

that all makes pretty good sense, thanks!!