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Old 12-26-2006, 10:10 AM   #1
monkeynuts
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Registered: Feb 2005
Distribution: Mepis
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Converting .rec files to DVD


Distro: MEPIS

I'm moving .rec files from a Topfield PVR to my PC, and would like to convert and then burn them to DVD.

Has anyone attempted this, or know any suitable programs?

I'm aware that there is a program to move them over, I'm just not sure about converting them and I've also never burnt a DVD under Linux.

Any help much appreciated!
 
Old 12-27-2006, 11:03 AM   #2
chmasy
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For general burning of CD's and DVD's I use K3b. If using fedora its an easy install.

su root
yum install k3b
 
Old 12-27-2006, 02:58 PM   #3
David the H.
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Very simply, you first need to make sure the video is in a dvd-compatible format, then you need to author the dvd, that is, create a dvd structure for it, before burning it to a blank disk.

I was worried that the .rec format might be some kind of proprietary container, but I did a bit of Google searching and found that, luckily for you, it appears that the .rec format is really just a renamed mpeg-ts stream (though perhaps with some special header info or something mixed in). So it looks like you should be able to use just about any video editing software to convert it to dvd compatibility. I'm still not sure what the exact contents are, my guess is it's probably mpeg2 in a dvd-compatible frame size and frame rate, with ac3 audio, but I may be wrong. It should be pretty easy to convert in any case.

I suggest using avidemux, a fairly powerful and easy-to-use gui, for video processing. Just load the video into the program and first check the video properties (in the file menu or the "video information" toolbar button). If the properties already match the dvd-required specification (from the Wikipedia link above) and you're satisfied with that, then you can simply select "copy" in the video and audio configuration buttons on the left side. If not, you can use the configuration and filter buttons to convert them to the specs you want. You can get more video on a disk if you reduce the bitrate or frame size, for example, but at the expense of quality. There are also some useful filters for resizing, picture sharpening, and things like logo removers you can use. Be sure to select 'mpeg-ps' as the output format (it's the dvd-standard), then simply click save to output the results to a new file. Processing can take minutes to hours, depending on how long the video is, how fast your computer is, and what exactly you're doing.

If you get really into it, you can learn how to do the same thing with the command-line programs directly, mplayer, transcode, ffmpeg, mp2enc, etc.

Next comes authoring. This is a bit trickier, as the main program for it is dvdauthor, a command-line tool that requires a pretty good understanding of how the dvd structure works. But again there are some gui frontends that you can use to make it easier. I suggest using dvdstyler for most simple disk authoring projects. I've found it easy to use and fairly flexible. The documentation is also clear and helpful in explaining how the dvd structure works. It should work for you as long as you don't need anything too complicated.

There are a few other dvd authoring guis out there, but I haven't tried most of them. I'd stay away from qdvdauthor right now. It's more powerful and flexible, but it currently has some terrible palette bugs and other problems that require a lot of frustrating hands-on work-arounds to overcome.

And finally, once you have the dvd authored, you can burn the completed structure to disk. Most authoring guis can do it for you, or you can use k3b, gnomebaker or whatever other burning program you want. Be careful when doing all the above to stay within the dvd capacity, which is about 4.3GB (dvd blanks usually say 4.7, but that's just marketing based on an incorrect definition of a byte). Again, if you need more space, try lowering the bitrate of the video, or use mp2 for audio. and be sure to save about 50-100 MB for the dvd authoring menus.

I hope this helps. Don't hesitate to ask if you have problems. Good luck!

Last edited by David the H.; 12-27-2006 at 03:15 PM.
 
Old 12-31-2006, 05:57 AM   #4
monkeynuts
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Registered: Feb 2005
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Quote:
Originally Posted by David the H.
Very simply...

I hope this helps. Don't hesitate to ask if you have problems. Good luck!
Thanks very much for the reply. I've not attempted to follow your instructions yet, but I'll give it a whirl.

This is one of the things I've not even attempted on Windows yet - more through laziness though, it must be said! But since I'm deleting my XP partition soon, I may as well just get the practice in on Linux...

I'm very grateful for you in depth answer, it's people like you who make the transition to Linux that little bit easier!

Have a good new year
 
Old 01-17-2007, 10:11 AM   #5
JeffArnold
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Registered: Jan 2007
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Avidemux - REC Files

Hi guys,
I guess I am now in the same position you were ages ago.
Reading the posts on this thread. It looks promising.

Trying to follow Daves, instructions above, I hit my first problem.

Im using Avidemux ( v 2.3.0 ) and I try to open the .rec file. No luck, it just displays a box saying cannot open file. There are no permission problems etc on the file.
The .rec plays fine with vlc.

Is there something I need to know about using avidemux or do to the rec before it will read it ?

Thanks for any help.
Jeff.
 
Old 01-26-2007, 02:17 AM   #6
Unadecal
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Registered: Jan 2007
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Converting Topfield files to mpeg / DVD

Good morning,

I was searching for ways to do the reverse (upload mpegs to my Toppy) when I came across this thread. I am not at all an expert, but having downloaded from the Topfield and created a DVD from it, I thought I would register and contribute.

As David says, the steps to achieve this involve de-muxing the .rec stream to strip the headers. This produces standard mpeg output (albeit video and audio are in separate files: .m2p and .mv2) and putting that output through DVD authoring and finally burning.

To de-mux the .rec file, by far the best and most popular tool to use is ProjectX (can't post link). This is a Java applet, therefore platform independant. The major advantages of using ProjectX are that it reads rthe .rec headers (er, well, a must really) and that it does minimal processing since it does not re-encode the video, hence it is very quick regardless how large the file is.

I use Windows, and do my authoring with TMPGEnc. for a wealth of information, help, step-by-step guides, forums and add-on (TAP) software for the Toppy 5800, visit (can't post link) (I am not connected with the site, I just found it really useful).

The step by step guides apply mostly to TMPGenc, but there must be a dvd autoring program for Linux in which you can configure things like bitrates, frame rates, aspect ratios, etc. as described in the guides and which accept .m2p and mv2 files as input. Try this forum: (can't post link)

Since this is a Linux forum, other users may find guides to hacking the Linux-based Linksys nslu-2 (slug) nas controller interesting.

I hope this helps.
 
Old 01-26-2007, 02:21 AM   #7
Unadecal
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Registered: Jan 2007
Posts: 2

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Sorry if these links are inappropriate, but I think they are relevant to the topic

ProjectX (http://project-x.sourceforge.net/)

software for the Toppy 5800, visit http://www.toppy.org.uk (I am not connected with the site, I just found it really useful).

The step by step guides apply mostly to TMPGenc, but there must be a dvd autoring program for Linux in which you can configure things like bitrates, frame rates, aspect ratios, etc. as described in the guides and which accept .m2p and mv2 files as input. Try this forum: http://forum.toppy.org.uk/forum/viewforum.php?f=8


I hope you find this useful,

Unadecal
 
  


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