/dev/mtdblock7             47.6M     47.6M         0 100% /tmp/img
du /tmp/img/ -xsh  ->    96.5M   /tmp/img/

и он же, но "распакованный" в ext3 раздел:
du /media/sda6/ -xsh -> 100.8M  /media/sda6/
На ровном месте +4 МБ.

dhcppc0:~#init 4
dhcppc0:~# eplayer3 /media/net/Sharename1/Int.2014.Dt.2100Mb.avi


tools/eplayer2.c >

Output
mode 1920, 1080, 32
stride = 7680, width 1920
15360k video mem

[container/container_ass.c:container_ass_init] >

[container/container_ass.c:container_ass_init] width 1920, height 1080, share 0, fd 706790772

[ass] Fontconfig disabled, only default font will be used.

[text_ssa.c:Command]
[text_ssa.c:SsaGetSubtitle]
[text_ssa.c:SsaGetSubtitle] file: /media/net/Sharename1/Int.2014.Dt.2100Mb.avi
[text_ssa.c:SsaGetSubtitle] folder: /media/net/Sharename1
[text_ssa.c:SsaGetSubtitle] ext: avi
[text_ssa.c:SsaGetSubtitle] basename: Int.2014.Dt.2100Mb
[text_ssa.c:SsaGetSubtitle] /media/net/Sharename1/Int.2014.Dt.2100Mb
/media/net/Sharename1 | Int.2014.Dt.2100Mb | avi
[text_ssa.c:SsaGetSubtitle] <
[text_ssa.c:Command] ret = 0
[container_ffmpeg.c:container_ffmpeg_init] >
[container_ffmpeg.c:container_ffmpeg_init] filename file:///media/net/Sharename1/Int.2014.Dt.2100Mb.avi

Input #0, avi, from 'file:///media/net/Sharename1/Int.2014.Dt.2100Mb.avi':
  Metadata:
    encoder         : VirtualDubMod 1.5.10.3 | www.virtualdub-fr.org || (build 2550/release)
  Duration: 02:49:00.98, start: 0.000000, bitrate: 1844 kb/s
    Stream #0:0: Video: mpeg4 (XVID / 0x44495658), none, 720x314 [SAR 1:1 DAR 360:157], 1701 kb/s, 29.97 fps, 29.97 tbr, 29.97 tbn, 29.97 tbc
    Stream #0:1: Audio: ac3 ([0]

• [0] / 0x2000), 48000 Hz, stereo, fltp, 128 kb/s

[container_ffmpeg.c:container_ffmpeg_update_tracks] number streams 2

Codec ID: 13 (0000000d)
[container_ffmpeg.c:container_ffmpeg_update_tracks] 0. encoding = V_MSCOMP
[container_ffmpeg.c:container_ffmpeg_update_tracks] Language und
[container_ffmpeg.c:container_ffmpeg_update_tracks] CODEC_TYPE_VIDEO 0
[container_ffmpeg.c:container_ffmpeg_update_tracks] frame_rate = 29.970030
[container_ffmpeg.c:container_ffmpeg_update_tracks] bit_rate = 1701889
[container_ffmpeg.c:container_ffmpeg_update_tracks] flags = 0
[container_ffmpeg.c:container_ffmpeg_update_tracks] frame_bits = 0
[container_ffmpeg.c:container_ffmpeg_update_tracks] time_base.den 5000000
[container_ffmpeg.c:container_ffmpeg_update_tracks] time_base.num 166833
[container_ffmpeg.c:container_ffmpeg_update_tracks] frame_rate.num 30000
[container_ffmpeg.c:container_ffmpeg_update_tracks] frame_rate.den 1001
[container_ffmpeg.c:container_ffmpeg_update_tracks] frame_rate 29970
[container_ffmpeg.c:container_ffmpeg_update_tracks] TimeScale 1000
Codec ID: 86019 (00015003)
[container_ffmpeg.c:container_ffmpeg_update_tracks] 1. encoding = A_AC3
[container_ffmpeg.c:container_ffmpeg_update_tracks] Language und
[container_ffmpeg.c:container_ffmpeg_update_tracks] Stream has no duration so we take the duration from context
[container_ffmpeg.c:container_ffmpeg_update_tracks] CODEC_TYPE_AUDIO 1
AudioTrack List
        und - A_AC3
VideoTrack List
        und - V_MSCOMP
Current Audio Track : 1 A_AC3 und
Current Video Track : 0 V_MSCOMP und
Current Subtitle Track : -1 (null)
[output/linuxdvb.c:LinuxDvbOpen] ioctl failed with errno 22
[output/linuxdvb.c:LinuxDvbOpen] VIDEO_CLEAR_BUFFER: Invalid argument
[output/linuxdvb.c:LinuxDvbOpen] ioctl failed with errno 22
[output/linuxdvb.c:LinuxDvbOpen] AUDIO_CLEAR_BUFFER: Invalid argument

[container_ffmpeg.c:container_ffmpeg_play]
[container_ffmpeg.c:container_ffmpeg_play] is Playing
[container_ffmpeg.c:container_ffmpeg_play] Created thread
[container_ffmpeg.c:container_ffmpeg_play] exiting with value 0
[container_ffmpeg.c:FFMPEGThread]
[container_ffmpeg.c:FFMPEGThread] Running!