MTR+Toasted DL discs, layer change

[miksu]

What happens to layer change position, when disk (DL) is ripped using MTR and burned using Toast (to +R DL)? Is the original layer change position preserved?

[willrob]

I'm not sure but Apple has posted a Knowledge Base article warning that if you are using iDVD 5 to create DL disks, you need to burn from iDVD directly and not create a disk image for burning in Toast, beacuse the layer change will get screwed up.

[chikanakan]

Apple is on crack, as always trying to push iDVD. Toast does on excellent job of setting the layer break on DVD+R DL media, and has been do so for close to a year. Apple on the other hand just decides to support it? Lame Apple. Toast can also burn DVD-R DL, which Apple has yet to support even in it's pro apps.

If you are using MTR and just have a VIDEO_TS folder, select DVD-ROM format in Toast and burn the disc.

Toast will scan the IFO files for the layer break and verify if it is in the correct location or not. If it is not in a usable location for DVD+R DL, Toast will find a usable location and set a new layer break. DVD+R DL require the layer break to be an ECC and non-seamless. It also requires the tracks be OTP.

DVD-R DL also require the layer break to be on an ECC and non-seamless. However for DVD-R DL in Mode 1, layer 0 must be burned, then the remain data burned to layer 1. Toast will decide where the correct layer breaks needs to be set.

If you have a disc image, you can use Disc image format, but if the layer break is set wrong in the image, Toast can't change it. In this cause it is best to mount the image in Toast and then burn the disc in DVD-ROM format. Toast can then set the layer break correctly.

If you create a disc image in Toast 6.0.7 and above, Toast will set the layer break correctly in the image and it would not need to be mounted.

If Apple says that nothing can burn there image and the layer break not work, then they are not setting the layer break correctly anyway. DVDSP 1 and 2 had a long standing bug that never set the layer break correctly (in the IFO files). It wasn't until an update to DVDSP 3 that worked correctly if I remember.