I've ripped all of my DVD's to Files (video_ts) with AnyDVD HD. I want to convert to ISO as well with ImgBurn. On some of the dual layer ISO's I've created, the ISO file is bigger than the original video_ts file. Is this normal and if so is it because of the padding used for the layer break? I always thought the ISO should be the exact same size as the original video_ts file.
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The ISO will be slightly bigger. There is some overhead involved. If it's a whole lot bigger, then maybe a problem. How much bigger is your average VIDEO_TS folder converted to the ISO file?
I don't have much to add. I mostly just wanted to take part in a thread where everyone is correct. I'm not sure I've seen this before.
Originally Posted by redwudzOriginally Posted by NoahtuckOriginally Posted by bbanderic
The ISO will be slightly bigger. There is some overhead involved, although it's generally a relatively negligible amount (when considering the capacity of the disk). Remember, though, that since an ISO is a direct representation of the layout as it would exist on a disk, if the source material exceeds the capacity of a single layer disk, any layer break padding adds to the size of the ISO.
If, however, the ISO is only being used as a container (never to be burned), the closest you'll come to the size of the AUDIO_TS - VIDEO_TS structure (using ImgBurn for the ISO preparation) is by using the following settings:
In the frame on the right side of the ImgBurn window, select the "Advanced" tab.
Select the "Media" tab
Select "Custom" for the "Double Layer" Profile
Copy the value in the "Media Capacity" box
Paste the value into the "Max Sectors in L0" box
Then just make the ISO.
After you're done, make sure you set the "Double Layer" Profile back to "DVD+R DL".
Last edited by VegasBud; 19th Feb 2010 at 01:57. Reason: An inability to correctly spell "paste" on the first try
Only DVD-Video data goes in VIDEO_TS.
Other folders (including hidden ones) can cause more space use in an ISO.
7.15 and 7.45 both need a DVD+R DL anyway.
Last edited by bbanderic; 19th Feb 2010 at 20:32.
Originally Posted by VegasBud
The "smallest possible ISO" (for dual layer dvd-video) settings (for ImgBurn) I described would be useful only in providing the smallest disk space requirement for the ISOs (the number of ISOs which could fit on a given hard drive would be maximized). How many more ISOs would fit on a given hard drive would vary with each collection of ISOs. If the example you provided (7.15 GB vs 7.45 GB) represented the average in a given collection, a one TB drive would hold about 7 more ISOs (131 vs 124) if the disk space used for layer breaks was removed. If the example which Noahtuck provided was the average, you wouldn't get any more ISOs on the drive. The upside of using "smallest possible ISO" is the most efficient use of the storage space on a hard drive , the downside is it should never be burned (as is) to a DVD+R DL. You would need to extract a "smallest possible ISO" to the VIDEO_TS - AUDIO_TS structure, and let ImgBurn create a proper DVD+R DL "layer break included" ISO (from that structure) if you wanted to burn it to a dvd (or just burn the extracted structure directly, without creating an ISO first).
Regardless of which way you create the ISO, the entire source material is present in the ISO. The only thing that's changing is the layout of that material as it would exist on a dvd disk, so you shouldn't "have an issue" using either one in a media player.