Does anyone know if the 04TL DVD player supports playback of either DVD+R or DVD-R recordable disks?

Sure would be nice to get most of my 30 Pimsleur Language CDs on a couple of DVDs.

żGotJazz?

 

DVD-R's and DVD-RW's play back fine in the TL player. I do not have a DVD+R/RW burner, so I haven't tested them. You need to make sure you author the DVDs as DVD-Audio. Most software will not do that.

See www.discwelder.com for software that will. It's on sale through the end of the month.

Do a search of this forum for "DiscWelder" to find loads of info on this topic.

Mike

 

I was wondering if you can make dvd music cd. Just like you do when you make a music cd with you mp3s. Can you do that with a dvd to have more then just 80 mins of mucis.

 

rfs830 -

If svtmike's response is correct (DVD-R & DVD-RW are recognised), the answer would be "yes" as long as you record properly as DVD-Audio.

You won't get any better quailty such as the DVD-A 5.1 sound, though - it'll just have standard stereo playback.

Hey, svtmike - how long are the music DVDs that you burn? Are they variable based upon the amount of data being stored, or are they fixed at a maximum length of time?

I have found out with CDs (which seem to use Constant Angular Velocity or CAV) that I get 74 minutes regardles of the size of the data. Is this true of DVDs also?

Thanks!

żGotJazz?

 

Well if it dose work then cool. I dont need to get an mp3 player. Now i just have to get the car.

 

Since there's no compression with the DVD-As produced by DiscWelder Steel, the amount of music that can be stored on the DIY DVD-A is pretty deterministic. For most practical purposes, the data will be 44.1 kHz 16-bit stereo (CD quality), and the capacity of a DVD-R blank is about 7.4 hrs. There is a little overhead on the DVD-A for support files, but it's literally only a few MB.

Steel has an additional limit of 99 tracks, so if you are burning a bunch of short tracks you might run out of track number capacity before you run out of disc space.

Mike

 

Has anyone tried to make a "backup" copy of a commercial released DVD-A disc by using EZCD/DVD creator 6.0 or Pinnacle Micro's Instant Copy, DVD XCopy etc? Or do we still need Discwelder? I'm not trying to create a disc of my own, just to make a back-up for my car.

 

svtmike - Cool! That will get me about 14 lessons per disk, and if DVD-RWs are understood I can then reuse the disks after I've learned them.

It's a shame that they use a fixed bit-rate. Playing back pure vocal information in mono would probably allow me to get an entire series on one DVD if they allowed compression/variable bit-rates.

żGotJazz?

 

Bummer!

I just checked around ... $500 for DiscWelder Steel is way too much for me right now (especially after buying a TL!).

I guess I can wait a year or so when a freeware version becomes available - or I guess I can start programming one myself in all my spare time.

 

Most DVD-As are encrypted in a more robust manner than DVD-Vs, so copying in general doesn't work at all. The watermarking embedded in the tracks makes such copying ineffective right now even for unencrypted DVD-As (in other words - there are programs that will copy the content, but there is no way to defeat the watermarking that will render the DVD-A unplayable).

Mike

 

svtmike - That's interesting! I was unaware that there is a watermarking technique done on DVD-As. I'm not sure how DiscWelder gets past that though - I understood that most watermarking techniques were made to be extremely difficult to duplicate in software because they were part of the stamping process.

When a CD or DVD is stamped, bit patterns always occur in predictable spots. The watermarking techniques that I read about would always put small chunks of data in specific locations and then check for those on playback. Copied discs may get all the data right (including the watermarking chunks), but where the bits (pits & lands) physically occur on the copy can vary significantly enough to render the disc useless.

CDs didn't plan for this in their original designs, so the playback hardware isn't optimally designed to check for watermarked CDs. There have been software attempts at detecting watermarking, but I think most - if not all - have been defeated by hackers.

If all DVD-A hardware is designed to check industry-standard watermarks, I wonder how DiscWelder was able to create 100% reproducable watermarks in software? Hmmm ....

I guess that could partially explain why it's so darned expensive.

żGotJazz?

 

I'm actually not sure if Discwelder does any watermarking. I'm fairly certain that it does not encrypt. The watermarking used in commercial DVD-A's is by a company named Verance. Do Google search on their name and you'll come up with a bunch of information about it.

Mike