【请教】mkv用了好几种办法都无法导入vegas7.0

我所用的视频详细信息（从格式工厂打开查看到的信息，略长...不知道哪些有用哪些没用就都发上来了）：
General
Unique ID : 201037055062089091867182302572755717063 (0x973E5413D3F39BAE9E18A9B24E4A8BC7)
Complete name : E:\老三国\三国演义.E68.出师北伐.1994.DVDRip.x264-10bit.AC3-CMCT.mkv
Format : Matroska
File size : 619 MiB
Duration : 40mn 17s
Overall bit rate : 2 147 Kbps
Encoded date : UTC 2014-06-17 14:14:44
Writing application : mkvmerge v6.5.0 ('Isn't she lovely') built on Oct 20 2013 12:50:05
Writing library : libebml v1.3.0 + libmatroska v1.4.1
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High 10@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 6 frames
Format settings, GOP : M=2, N=16
Codec ID : V_MPEG4/ISO/AVC
Duration : 40mn 17s
Bit rate : 1 720 Kbps
Width : 704 pixels
Height : 528 pixels
Display aspect ratio : 4:3
Frame rate : 25.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 10 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.185
Stream size : 496 MiB (80%)
Title : Encoded.by.暮雨潇潇@CMCT
Writing library : x264 core 138 r2358 9e941d1
Encoding settings : cabac=1 / ref=6 / deblock=1:-3:-3 / analyse=0x3:0x133 / me=umh / subme=10 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=32 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=-2 / threads=12 / lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=6 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc_lookahead=50 / rc=crf / mbtree=1 / crf=22.0 / qcomp=0.60 / qpmin=0 / qpmax=81 / qpstep=4 / vbv_maxrate=50000 / vbv_bufsize=62500 / crf_max=0.0 / nal_hrd=none / ip_ratio=1.40 / aq=1:1.00
Language : Chinese
Audio
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Codec ID : A_AC3
Duration : 40mn 17s
Bit rate mode : Constant
Bit rate : 384 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Delay relative to video : 32ms
Stream size : 111 MiB (18%)
Title : 国语.AC3.DD5.1@384K
Language : Chinese
Text #1
ID : 3
Format : ASS
Codec ID : S_TEXT/ASS
Codec ID/Info : Advanced Sub Station Alpha
Compression mode : Lossless
Title : 简体中字
Language : Chinese
Text #2
ID : 4
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Title : 简体中字SRT

用MC封装完成后的mp4文件信息：
General
Complete name : E:\老三国\三国演义.E68.出师北伐.1994.DVDRip.x264-10bit.AC3-CMCT.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 620 MiB
Duration : 40mn 17s
Overall bit rate : 2 150 Kbps
Writing application : Lavf55.33.100
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High 10@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 6 frames
Format settings, GOP : M=2, N=16
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 40mn 17s
Bit rate mode : Variable
Bit rate : 1 761 Kbps
Width : 704 pixels
Height : 528 pixels
Display aspect ratio : 4:3
Frame rate mode : Constant
Frame rate : 25.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 10 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.190
Stream size : 508 MiB (82%)
Writing library : x264 core 138 r2358 9e941d1
Encoding settings : cabac=1 / ref=6 / deblock=1:-3:-3 / analyse=0x3:0x133 / me=umh / subme=10 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=32 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=-2 / threads=12 / lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=6 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc_lookahead=50 / rc=crf / mbtree=1 / crf=22.0 / qcomp=0.60 / qpmin=0 / qpmax=81 / qpstep=4 / vbv_maxrate=50000 / vbv_bufsize=62500 / crf_max=0.0 / nal_hrd=none / ip_ratio=1.40 / aq=1:1.00
Language : Chinese
Audio
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Codec ID : ac-3
Duration : 40mn 17s
Bit rate mode : Constant
Bit rate : 384 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Stream size : 111 MiB (18%)
Language : Chinese

另外我的电脑配置是不是太差了= =开vegas7每次设置选项都要卡好半天，预览也是一卡一卡的，换成老版本会不会好一点？

对用vegas做MV有点绝望了...今天在电脑前坐了一整天，视频怎么封装也无法导入，用格式工厂转格式太慢了，而且我担心对画质音质有损伤；而且家里电脑配置不行，用的是vegas7，还卡得预览画面都几乎走不动。听说vegas还是各种视频剪辑软件里对配置要求比较低的。
现在听到音乐脑海里几乎可以浮现MV的画面了，转场啊字幕啊也构思了很多，MV剪辑的教程也学完了，就是不！能！剪！啊啊啊！太抓狂了

已用格式工厂挂机一晚上转完格式，感谢大家帮助...另外这周除了写作业就是在做MV居然连镜头还没剪完，家里电脑卡，vegas选中一段视频都要卡死个10秒钟，剪了好多镜头，中间不知哪一步出错，有的镜头结尾少了好多秒，又要重剪...感觉自己这渣一样的速度都不好意思找歌曲作者要授权公开发布了= =明天就返校了，还有两张数学卷子一张化学卷子等着写...