How to convert sdv/3gp6 to mkv?

[kienkzz]

Hello, I've a file from my friend, and when I play on Media Player Classic, it can't play and MPC says error:

LAV Splitter Source (internal)::Video

Media Type 0:
--------------------------
Video: ž‰œÎ 640x360 29.97fps 433kbps

AM_MEDIA_TYPE: 
majortype: MEDIATYPE_Video {73646976-0000-0010-8000-00AA00389B71}
subtype: Unknown GUID Name {CE9C899E-0000-0010-8000-00AA00389B71}
formattype: FORMAT_VideoInfo {05589F80-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 0
bTemporalCompression: 1
lSampleSize: 1
cbFormat: 134

VIDEOINFOHEADER:
rcSource: (0,0)-(640,360)
rcTarget: (0,0)-(640,360)
dwBitRate: 433433
dwBitErrorRate: 0
AvgTimePerFrame: 333667

BITMAPINFOHEADER:
biSize: 86
biWidth: 640
biHeight: 360
biPlanes: 1
biBitCount: 24
biCompression: ž‰œÎ
biSizeImage: 691200
biXPelsPerMeter: 0
biYPelsPerMeter: 0
biClrUsed: 0
biClrImportant: 0

pbFormat:
0000: 00 00 00 00 00 00 00 00 80 02 00 00 68 01 00 00 ........€...h...
0010: 00 00 00 00 00 00 00 00 80 02 00 00 68 01 00 00 ........€...h...
0020: 19 9d 06 00 00 00 00 00 63 17 05 00 00 00 00 00 .�......c.......
0030: 56 00 00 00 80 02 00 00 68 01 00 00 01 00 18 00 V...€...h.......
0040: 9e 89 9c ce 00 8c 0a 00 00 00 00 00 00 00 00 00 ž‰œÎ.Œ..........
0050: 00 00 00 00 00 00 00 00|01 42 e0 1e ff e1 00 1f .........Bà.ÿá..
0060: 27 42 e0 1e 95 a0 28 0b fe 58 40 00 00 fa 40 00 'Bà.•*(.þX@..ú@.
0070: 3a 98 1a 30 01 6e 00 0b 70 8d ac 01 e2 85 54 01 :˜.0.n..p�¬.â…T.
0080: 00 04 28 ce 32 48                               ..(Î2H

When I checked on Mediainfo, it says this:

General
Complete name                            : D:\Compressed\SD_VIDEO\PRG001\MOV001.SD1
Format                                   : sdv 
Codec ID                                 : sdv  (sdv /3gp6)
File size                                : 40.2 MiB
Duration                                 : 10 min 0 s
Overall bit rate mode                    : Variable
Overall bit rate                         : 561 kb/s
Encoded date                             : UTC 2023-02-16 11:52:36
Tagged date                              : UTC 2023-02-16 11:52:36

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : @L4.3 / Baseline@L3
MultiView_Count                          : 1
HDR format                               : SMPTE ST 2086, HDR10 compatible
Format settings                          : 1 Ref Frames
Format settings, CABAC                   : No
Format settings, Reference frames        : 1 frame
Codec ID                                 : ž‰œÎ
Duration                                 : 10 min 0 s
Bit rate mode                            : Variable
Bit rate                                 : 433 kb/s
Maximum bit rate                         : 1 499 kb/s
Width                                    : 640 pixels
Height                                   : 360 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 29.970 (30000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.063
Stream size                              : 31.0 MiB (77%)
Language                                 : Japanese
Encoded date                             : UTC 2023-02-16 11:52:36
Tagged date                              : UTC 2023-02-16 11:52:36
Mastering display color primaries        : R: x=0.469820 y=0.556860, G: x=0.700420 y=0.211180, B: x=1.241960 y=0.111960, White point: x=0.626360 y=0.252900
Mastering display luminance              : min: 196711.7516 cd/m2, max: 219426.9358 cd/m2
Codec configuration box                  : avcC

Audio
ID                                       : 2
Format                                   : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Codec ID                                 : ’�Ëž-40-2
Duration                                 : 10 min 0 s
Bit rate mode                            : Constant
Bit rate                                 : 128 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 48.0 kHz
Frame rate                               : 46.875 FPS (1024 SPF)
Compression mode                         : Lossy
Stream size                              : 8.93 MiB (22%)
Language                                 : Japanese
Encoded date                             : UTC 2023-02-16 11:52:36
Tagged date                              : UTC 2023-02-16 11:52:36

I'm want to convert and watch to know that file is. Can you help me? Original file I'll give in DM when you want.
Thanks for your reply.

[Hoser Rob]

Mediainfo reports a very strange looking video codec ID:

Codec ID                                 : ž‰œÎ

Did that file come from a PVR? If so it's encrypted.

[kienkzz]

Mediainfo reports a very strange looking video codec ID:

Codec ID                                 : ž‰œÎ

Did that file come from a PVR? If so it's encrypted.

Yeah, that file is encrypted, from Japanese TV. Recorded by Panasonic DMR-BZT910.
How can decrypt this file? Do you have solution of this problem?