ProX will not write to DVD DL discs

emmrecs wrote on 8/4/2025, 4:12 AM

Hi Rick,

My method of creating DL Discs from VPX footage is to NOT attempt the burning in VPX! For me, this has been the case for several versions of the software. The reason for this is that DL Discs require a nominated "split point", where the reading laser knows to return to the beginning of the disc to read the second data layer and VPX seems to not know how or where to create this. (I did download your Error Report files but lack the skill to adequately understand them, sorry! So, what I suggest below may NOT be appropriate for you.)

Rather, for DL Discs I do the following:

I choose the Disc Image option and create the files in VPX (there will be a folder in your chosen storage folder for Disc Images), the process also creates an .iso file but this can be discarded.
I then use the free ImgBurn to burn the actual disc. Full instructions on how to do this can be found here.
One very common problem is that, having started to use ImgBurn, it throws the "end of the world" error, because it can't find a suitable split point!
That's when this post becomes absolutely invaluable! (I have both the posts from the ImgBurn Support forums printed out and available for when I need to create a DL disc because the process is NOIT easy!)
Having successfully followed the above procedures and created your DL disc you can, if you wish, use another feature of ImgBurn to create a new .iso file using the files now in the source folder.

One final, slightly "off the wall" thought: can your Disc Burner definitely handle DL discs?

HTH

Jeff
Forum Moderator

SP. wrote on 8/4/2025, 4:33 AM

@rickduley the error log says that the disc is not empty or not writable.

There is also often this error:

ThumbnailCache::GetThumbnailFromFile: invalid filetype 208 J:\Movie Archive\Attenborough 99\Attenborough 99.MVP

Maybe it has something to do with DVD menu? In the past users had encoding problems if they changed clips or chapter makers after creating the DVD menu. Then it only helped to recreate the DVD menu. But encoding seems to finish fine in your case.

johnebaker wrote on 8/4/2025, 5:42 AM

@rickduley

Hi Rick

. . . . Writing to ordinary DVDs is fine but for longer movies I need to write to write to Dual Layer Discs. . . . .

From the 2 log files, the rendering of the video to DVD format completes steps 1 to 4 of the 5 steps necessary for one movie, so there is no apparent issue with the creation of the DVD files.

The issue at step 5, looks like the DL disks are not being detected to determne the type and burn parameters for both DVD+R DL and DVD-R DL and split point, determined before rendering starts if a disc is present/detected by the drive.

What are the make/model numbers of the 2 DVD drives and they support DL disks?

What brand and type number are the DL discs?

John EB

rickduley wrote on 8/10/2025, 1:24 AM

Hi @johnebaker

This is from Device Manager@johnebaker

The second one (M drive) is an LG external disc. The internal drive came with the PC (Dell OptiPlex 3070) and I don't have any info. Is there some way to get more detail?

As far as the discs are concerned all that's written on them is

1. TDK DVD-R DL for CPRM 215min

2. FAC874KH991226H2 (I think these are Verbatim).

I hope this helps.

CubeAce wrote on 8/10/2025, 1:50 AM

@rickduley

Hi.

A DVD burner capable of burning Dual layer discs should have a DL emblem on the front loading draw.

Ray.

rickduley wrote on 8/10/2025, 1:58 AM

@CubeAce

@johnebaker

Hmm!

rickduley wrote on 8/10/2025, 2:42 AM

@CubeAce

@johnebaker

There seems to be a marked reticence amongst Burner manufacturers to assert that their Burner will work with DVD+R DL and/or DVD-R DL discs. As far as I can tell, this is my external burner https://www.zotim.com.au/lge-drw-ext-slim-gp60nb50

Should that not do the job?

emmrecs wrote on 8/10/2025, 2:55 AM

@rickduley

Unfortunately, there's no mention of Dual-Layer capability with that external burner you linked.

As Ray said, any D/L-capable drive should include the D/L symbol.

Jeff
Forum Moderator

EDIT: correction, I see the spec does include reference to DL but one reviewer writes this: This drive is useless for me I bought this DVD drive because it claimed MDisk and Blu-ray support. It does not work for either one. After calling LG support, I was told it only works for a 4.7GB disk made by one manufacturer only.

Reference to "4.7GB" seems to indicate single-layer only.

rickduley wrote on 8/10/2025, 3:16 AM

@emmrecs @johnebaker @CubeAce

Hmmmm! 😒😖 That's a worry.

If it doesn't break forum rules, can anyone suggest a burner that will do what I want? I have just spent an hour or so browsing without success.

Thanks

ericlnz wrote on 8/10/2025, 3:58 AM

Look at the ASUS range. But a lot will depend on what is available in your corner of the world.

johnebaker wrote on 8/10/2025, 3:10 PM

@rickduley

HI Rick

In addition @ericlnzs recommendation I would also suggest looking at the Verbatim range of USB drives, mine is this one (UK supplier) DVD SL and DL, BluRay and M-Disc and is giving good service.

The LG drive supporting only one brand of disc may be because it has only the burn parameters for that brand/type of disk programmed into it and does not have a 'default' setting for 'unknown disks'.

John EB