What is the most reliable way to save large files on DVD-R?

[Tom101]

Hello,

I need to save some large MPEG-2 files on a DVD-R which I must then give to a DVD authoring company.

How can I make sure that the file is saved absolutely perfectly, i.e. with no errors?

Is there a specific software I must use that will scan the DVD-R before and after the files have been saved on it?

(I always use Maxell or TDK DVDs).

Any advice welcome.

Thanks,

Tom.

[duhmez]

You are gonna love this.

This is spectacular.

1)Download and include Quickpar. Also include a link to it in a readme on your dvd-r, so they can check it out and download it themselves. Create a bunch of Par 2 files based off the video you are going to burn.

With the par 2 files they can veryify the integrity of the original file, and ithey can repair it too with quickpar!

Anybody bakcing up any data to DVD-R should use Par2 files. They provide excellent data integrity/recovery.

Another step to protect the files, use WinRar to split your data streams into chunke, 15 MB or so each. this way, if there is a defect in the burn or it gets damaged, if they can copy enough of the rar files, and enough of the par 2 files, it will be able to reconstruct the original date perfectly.

Poeple in the newsgroup scene have been using par files for quite a while, but these new par2 files are much more flexible and can protect much more date than the old Par 1 standard.

[Faustus]

I would think that the disc in question would need to be DVD compliant if its going to a duplication house. Just make sure you get a good quality media, spare no expense then let it do the verify step. maybe run Nero DVDspeed on it.

Personally I thought you usually used DVD Authoring drives for this type of thing.

[garryheather]

... or supply the relevant content on tape like DTF or DAT Data.

The house will want to check for compliancy themselves if reputable, they don't want a bad name for your mistakes. Also, it will be tweaked if you are paying for any CSS or Macrovision extras.

There are recorders and media out there targetted at the Authoring market, but they are few and far between. Most houses will accept other media but their disclaimers are written by high class lawyers brought back from the bowels of Hell by Satan himself !

[Tom101]

Flaystus, what do you mean by let "it" do the verification? Unfortunately I do not have anything that has a "verify" option.

Could you recommend a program that will manage the saving process and that will scan the DVD-R both before and after the files have been saved on it?

Thanks,

Tom.

[akrako1]

Nero has an option to verify written data. The option only appears on the screen when the cd/dvd is burning. Check or un-check the box while burning, and Nero will verify the disc bit-for-bit. While this is good for most purposes, there is still the possibility of the disc being scratched or damaged. I would still recommend using PAR2 files for redundant backup.

[duhmez]

To add to this: A CSS license is free. (Of charge) not of freedom)

macrovision will cost though.

[dcsos]

I'VE SEEN GOOD DISC FAIL TO VERIFY tho'

However there may be some explainable reasons to fail VERIFICATION..
for example if your auto-play is on, while verifying the BURN PROGRAM can't get to any files that may have 'autorun" once the disc was sucessfully burned...a good disc, but negating the VERIFY step..

VERIFY is also available as a default in PRASSI, STOMP or SONIC RECORDNOW MAX

.PAR archives are very good but it takes a too long to compress and
uncompress large files from an optical disc