MKV editing problems

[zdvd]

The only editor I have been able to find that will even open MKV is avidemux. When I load the MKVs into avidemux I cannot jump to another position in the file. The beginning/end markers don't work at all. I don't get any errors or anything, it just doesn't do anything. It seems completely non-operational with MKVs other than the fact that it can open and play them.

Is there another editor out there that will edit MKV (or a workaround for this problem in avidemux)?

[Baldrick]

What does your mkv contain? video and audio codec(identify using mediainfo if you are not sure).

[zdvd]

It is MPEG-2 with AC3. I don't have the source material (which was a DVD).

Video
ID : 1
Format : MPEG Video
Format version : Version 2
Format profile : Main@Main
Format settings, BVOP : No
Format settings, Matrix : Default
Codec ID : V_MPEG2
Codec ID/Info : MPEG 1 or 2 Video
Duration : 24mn 26s
Bit rate mode : Variable
Bit rate : 4 492 Kbps
Nominal bit rate : 9 800 Kbps
Width : 720 pixels
Height : 480 pixels
Display aspect ratio : 16:9
Original display aspect ratio : 16:9
Frame rate : 29.970 fps
Standard : NTSC
Resolution : 8 bits
Colorimetry : 4:2:0
Scan type : Interlaced
Scan order : Top Field First
Bits/(Pixel*Frame) : 0.434
Stream size : 785 MiB (86%)

Audio #1
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Codec ID : A_AC3
Duration : 24mn 27s
Bit rate mode : Constant
Bit rate : 448 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Surround: L R, LFE
Sampling rate : 48.0 KHz
Stream size : 78.4 MiB (9%)
Title : 3/2+1
Language : English

[Baldrick]

I don't think you will find a good editor for that. Maybe easiest to remux to a mpg, demux the video and audio with mkvextract or mkvcleaver, make a mpg with ImagoMPEG-Muxer and then edit with mpg2cut2, videoredo, etc.