MKV to MP4 problem

[flluxhie]

I have some mkv files and i wanted to convert them to mp4,so i did some research and found out i would have to use a MKV splitter,so i downloaded mkvtoolnix.It did work,it exctracted the h264 and the flac file.Then i just had to mux them.I downloaded mp4box,read some guides and i did it.Everything went well,till here.I open the video and the quality is sooooo crappy the colors are messed up there is no audio the video lags and many more...So i think i made a mistake,i search again and i find that there are GUIs for mp4box,first i try mymp4box...nothing same problem except the fact that when i tried to import the audio,it would not recognize it as supported files i then tried YAMP,still the same problem it will not recognize flacs or any other audio format.So i tried other files,with different audio sources,it seems that it works with ogg and acc.But the sync is messed up,however that is not my concern.The video quality with some files is good with some others it is messed up,some have audio but the sync is a mess,others do not even have audio.What is going on here...?

[jman98]

WHY do you think you want MP4? Do you understand that using MP4 will in no way improve the original contents of the MKV? You need to also understand that MKV containers basically have no limits on what they can hold but MP4 is quite restrictive. As you found out, FLAC is not supported. DTS is also not supported.

Your demux and remux problems are definitely odd but if you are doing this conversion because of some misunderstanding or because some friend stupidly told you that "MP4 is better" maybe your real solution is to just leave everything alone.

[flluxhie]

no man i want to edit the files that's why i want to convert them,i know all that.If you have anything to suggest that could help me for example another format i would gladly listen.What i want is a format that is supported in sony vegas so i can edit them,i forgot to mention that in the original topic.

[Baldrick]

Try mkv2mp4.

You could also try convert to an avchd mts/m2ts with something like avchdcoder and try import in vegas.

[flluxhie]

Ok did a lot of test with a bunch of files,and i found that the fps is changed for 23.976 to 25.000
General
Complete name : C:\Users\Flluxhie\Desktop\[Coalgirls]_Another_01_(1920x1080_Blu-Ray_FLAC)_[BB945F6C]_track1_jpn.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 1.41 GiB
Duration : 23mn 41s
Overall bit rate : 8 493 Kbps
Encoded date : UTC 2012-07-20 14:18:45
Tagged date : UTC 2012-07-20 14:18:45

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High 10@L5.1
Format settings, CABAC : Yes
Format settings, ReFrames : 16 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 23mn 41s
Bit rate : 8 491 Kbps
Maximum bit rate : 80.1 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 fps
Original frame rate : 23.976 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 10 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.164
Stream size : 1.41 GiB (100%)
Writing library : x264 core 122 r2184 5c85e0a
Encoding settings : cabac=1 / ref=16 / deblock=1:0:0 / analyse=0x3:0x133 / me=tesa / subme=11 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=24 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=-2 / threads=12 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=16 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc_lookahead=60 / rc=crf / mbtree=1 / crf=12.0 / qcomp=0.60 / qpmin=0 / qpmax=81 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Encoded date : UTC 2012-07-20 14:18:45
Tagged date : UTC 2012-07-20 14:19:13
So,how can i configure it not to change the frame ratio?

Never mind,i installed another program (mymp4boxgui) that has that option and it's all ok,but those converters look pretty neat