MKV transfers with TiVo Desktop Plus 2.8: Is it possible without re-encoding?

[bkdtv]

TiVo Desktop Plus 2.8 will transfer high-definition MP4 files with AAC and DD5.1 audio to the TiVo as is, without any re-encoding or quality loss. TiVo Desktop transfers these MP4 files to the TiVo at 20+Mbps, twice the rate of MPG and TiVo files.

I've been using Yamb 2.1b2 (http://yamb.unite-video.com/download.html) to save MKV files with AAC and DD5.1 audio as MP4 files. To do that, you click the Creation -> Click to Create a MP4 file... menu, and select the MKV file.

Is there a way to bypass the remuxing of MKV to MP4 that still allows TiVo Desktop to transfer the MPEG-4 stream as is, at 25-30Mbps? In other words, is there a Windows configuration that allows TiVo Desktop 2.8 to demux the H264 and AAC/DD5.1 streams from a MKV file for transfer, without re-encoding into MPEG-2? I don't want to re-encode it to re-encode with MPEG-2, as causes quality loss and slows the transfer by 70+%.

Notes for those installing Yamb: Choose custom setup in the Yamb installer and check mkvextract. If you get an error about a missing regex.dll, you can download that here (http://pwong.is-a-geek.com/mkvtoolnix/regex2.dll) and place it in the mkvextract subfolder in the Yamb installation directory. If using Windows 7, sure to install the Yamb program to a folder where you have permissions to write, such as a subfolder in your Users folder (ex: My Documents or Desktop). Do the same for the temp folder, defined in Yamb settings.

[fyodor]

On an unrelated note, what are the bitrates for the MKV/MP4 files you've been transferring? I'm curious what is feasible.



TiVo Desktop Plus 2.8 will transfer high-definition MP4 files with AAC and DD5.1 audio to the TiVo as is, without any re-encoding or quality loss. TiVo Desktop transfers these MP4 files to the TiVo at 20+Mbps, twice the rate of MPG and TiVo files.

I've been using Yamb 2.1b2 (http://yamb.unite-video.com/download.html) to save MKV files with AAC and DD5.1 audio as MP4 files. To do that, you click the Creation -> Click to Create a MP4 file... menu, and select the MKV file.

Is there a way to bypass the remuxing of MKV to MP4 that still allows TiVo Desktop to transfer the MPEG-4 stream as is, at 25-30Mbps? In other words, is there a Windows configuration that allows TiVo Desktop 2.8 to demux the H264 and AAC/DD5.1 streams from a MKV file for transfer, without re-encoding into MPEG-2? I don't want to re-encode it to re-encode with MPEG-2, as causes quality loss and slows the transfer by 70+%.

Notes for those installing Yamb: Choose custom setup in the Yamb installer and check mkvextract. If you get an error about a missing regex.dll, you can download that here (http://pwong.is-a-geek.com/mkvtoolnix/regex2.dll) and place it in the mkvextract subfolder in the Yamb installation directory. If using Windows 7, sure to install the Yamb program to a folder where you have permissions to write, such as a subfolder in your Users folder (ex: My Documents or Desktop). Do the same for the temp folder, defined in Yamb settings.