Why is Nero 7 transcoding?

chemoul · **16th March 2007, 03:12 PM**

Nero Vision supports DVR-MS files, yet it is transcoding every file, no matter whether it's "original" or whether it's been edited using DVR Edit or Dcut.
The transcoding process on my system takes about as long as the duration of the actual recorded show.
From what I know, DVR-MS is just an MPEG2 file that doesn't need to be reencoded.

So why is Nero transcoding it?

Osho · **16th March 2007, 04:14 PM**

Hi Chemoul

I ran Windows Vista advisor and it says you delete Nero (I have Nero7) before installing Vista. So I think there may be some issues with it. You reload it again and see if it works.
Good luck

arkay · **17th March 2007, 01:34 AM**

Quote:

Originally Posted by chemoul

Nero Vision supports DVR-MS files, yet it is transcoding every file, no matter whether it's "original" or whether it's been edited using DVR Edit or Dcut.
The transcoding process on my system takes about as long as the duration of the actual recorded show.
From what I know, DVR-MS is just an MPEG2 file that doesn't need to be reencoded.

So why is Nero transcoding it?

Might help if you tell us what you're doing with it? I assume you're attempting to burn a dvr-ms file to dvd? Broadcast mpeg2 isn't necessarily DVD compliant. If Nero is being strict about DVD compliance then it will need to re-encode it to get the GOP structures compliant for standalone DVD playback (even if most standalone DVD players are fairly forgiving these days).

If you are just trying to convert to mpeg (not for burning on DVD), then yes, it should be much faster, only ripping out the ASF header and dumping the real mpeg2.

Cheers,

Arkay.

chemoul · **17th March 2007, 08:33 AM**

thanks for your reply arkay. Yes I'm trying to burn a video DVD.

It's just such a pitty that there doesn't seem to be any decent all in one software solution to burn video DVD's (apart from the integrated SonicEncoder option that doesn't work for me and would take ages anyway). I've tried Cyberlink's MakeDVD but that doesn't support 16:9 (go figure). According to their support that next version will be able to do it, but I think MakeDVD2 is more than 2 years old so who knows if and when they will bring out a new version.

KingHilary · **18th March 2007, 10:05 PM**

I am still using ULEAD Video Studio10 without problems to burn recorded TV shows to DVD so that my wife can watch them at her leisure. I use Videoredo to remove the adds because I have become familiar with it, and because the Ulead occasionally doesn't pick up the MS-DVR file without error. I use Video Redo to pick up the MS-DVR file from MCE, remove the ads, and save to MPG.

ULEAD then is used to burn the saved mpg to DVD. IT starts slowly once I get to the stage of burning. The first few percent take a long time and you would think it will be hours to finish, but then the last 80% or so goes quickly.

Tonight I burned the Saturday night funnies

after I removed all the ads. I started the burning at the beginning of UGLY BETTY

and it was done by the time the show finished.

King Hilary.

Lemon · **19th March 2007, 09:44 AM**

Hi

What do you mean by 'all in one'? I use VideoRedo for editing and Nero 6 to transcode and burn. Nero 7 is supposed to do it all (including editing), but I haven't upgraded yet because of some early incompaibilities / instabilities with MCE2005, and an upgrade price that is the same as the purchase price.

My main problem with Nero 6 is transcoding time (24 hours for an HD movie). Nero 7 seems to be a lot faster.

I did some testing a while back with Nero 7 / DivX and AutoGK and the best quality seemed to be using Nero Digital on it's HD settings - the compressed files fit on a data DVD, and played back well.

I was keen to know if you had any issues installing Nero 7 on MCE 2005.

cheers
Lemon

logifuse · **19th March 2007, 10:14 AM**

I think what chemoul is after here is a solution for this situation:

- I have a DVR-MS file that is X MB.

- I have a DVD that can take Y MB.

- X is less than Y, so why does the video need to be re-encoded to go on the DVD?

It's a more than fair question - re-encoding the file is a useless waste of time & can often result in worse picture quality.

My current process:

- Edit DVR-MS with VideoReDo & save output as a VOB.

- Use the DVD menu creator part of Super DVD Creator to compile a disc (in a folder on the hard drive) with a menu. As long as the resultant disc is smaller than a DVD, it doesn't re-encode.

- Now, the problem: @ the DVD menu creator stage, Super DVD Creator doesn't have a 16:9 option, so the resultant compilation is in 4:3 mode. I use IfoEdit to quickly edit the video headers to be 16:9.

- I burn the DVD from the above source.

Sounds slow & cumbersome, but it's still 5x quicker than using any of the apps that re-encode willy nilly. I'd say burn time plus 10 minutes (5 once you get the hang of everything).

And, Super DVD Creator have told me that they'll add the 16:9 option in the next release (which will be 9.5). That would allow you to skip the IfoEdit stage & turn it in to a 2 app process. Not perfect, but pretty good.

Justin

chemoul · **22nd March 2007, 02:17 PM**

thanks for your reply logifuse,
I'm now using VideoRedo to edit and save the DVR-MS file as an MPEG file and I'm then burning this file using Nero.
I have also tried saving the file as VOB in VideoRedo but it seems to take a little bit longer to save, and also a bit longer for Nero to burn it.

HyperReality · **22nd March 2007, 02:56 PM**

The VOB output option in VideoReDo is specifically designed for input into DVD authoring tools based on dvdauthor, for example DVDStyler and gui_for_dvdauthor - VRD adds empty Nav packets to the stream that dvdauthor populates during the authoring process (it helps make authoring quicker when using these tools).

So, as far as Nero is concerned, the .vob from VRD would be considered to be the same as a .mpg (and in a lot of cases Nero will re-encode when it doesn't need to - Nero's just like that sometimes!), as should take around the same time to process.

bb193 · **5th April 2007, 12:31 AM**

If:-

you are recording in dvd compatible MPEG2
you enable 'Smartencoding' in NeroVision and
you set your video and audio settings to 'auto'

then Nero will use 'Smartencoding' which means it will not transcode, but will use the MPEG2 as provided. This produces the DVD in about 10-15 minutes.

I don't use this, as I record fairly poor quality DVB-T, and the missing frames mean that, without transcoding, I end up with sound sync problems. If I had a decent digital signal, I'm sure it would be OK.

That said, it normally takes me about an hour to produce a DVD of a 2 hour program using Nero, which I think is pretty good. How much memory do you have in your box - and what is your processor speed?

Stephen_N · **12th April 2007, 10:21 PM**

TMPGEnc DVD Author may be worth a look. I've used its Source Wizard funcitonality to import DVR-MS files (it demuxes them relatively quickly) and then master DVDs without re-encoding. The package handles 16:9 correctly (but AIUI can't cope with a mix of 4:3 full-width and 16:9 full-width media -such as a 4:3 show on a network which has 16:9 commercial breaks and doesn't pillarbox 4:3 to 16:9 but instead changes aspect ratio - as DVD tracks can only be in a single aspect ratio)

I've had the odd AV sync issue but it works pretty well. It will warn you if there are GOP length issues in the source - but you can chose to ignore the warnings if your player is happy with slightly non-standard stuff.

(The DVD spec and the DVB-T spec are not identical - and DVB-T can have longer GOPs than DVD officially supports. However if you are using an analogue capture solution - I think most of these use DVD compatible encoding in the main)