you tube and google

[vinnywright]

so I was playing around with a hex editor today ,,,as inspired by a link in this post https://www.kubuntuforums.net/showth...l=1#post403453

and decided to open a .mp4 video with OKteta ,,,,,LOL

specifically DIO - Rainbow In The Dark Official Video Clip .mp4 DL'd from youtube ,,,,,,,,

I have always wandered how some videos that you would think they could not post due to copyright could stay up ,,,,(one of my screen casts got baned in some places just because of sound track in the background ) ,,,,,,,well at the very end of the .mp4 file ,,,,,was this

00B9:EC10 | 25 C2 03 B3  A8 C3 4C 53  85 EC A2 F1  76 F1 9C 1D | %Â.³¨ÃLS.ì¢ñvñ..
00B9:EC20 | 6F 1D 80 00  00 00 29 66  72 65 65 49  73 6F 4D 65 | o...)[COLOR=#ff0000]freeIsoMe[/COLOR]
00B9:EC30 | 64 69 61 20  46 69 6C 65  20 50 72 6F  64 75 63 65 | [COLOR=#ff0000]dia File Produce[/COLOR]
00B9:EC40 | 64 20 42 79  20 47 6F 6F  67 6C 65 00              | [COLOR=#ff0000]d By Google.[/COLOR]

? go figure

So can I assume that because it plainly states inside the video file that it is a "FREE ISO media file" that I can do whatever I would like with it ? ,,,repost it , burn and share , torrent , whatever.

VINNY

[Bings]

With music videos, people slightly up the speed so it's not really noticeable to people listening but fools whatever detection technology is used. Another way is to crop the video.

Edit: That clip is 3.59, the song length is actually 4.14

[Rod J]

Nice bit of sleuthing there Vinny!

I've played around with hex editors myself since my earliest days of computing. It's very interesting to search for strings in files that you wouldn't assume have messages in them. Occasionally you can find "Easter eggs" and messages in executables that programmers have left in code. Sometimes quite amusing messages!

I just had a look at one of the links posted by QqMike in that other thread you mentioned: https://www.howtogeek.com/201059/mag...de-in-your-pc/ ... really interesting stuff.

[kubicle]

So can I assume that because it plainly states inside the video file that it is a "FREE ISO media file" that I can do whatever I would like with it ? ,,,repost it , burn and share , torrent , whatever.

I don't think the "free" string is part of the "IsoMedia" metadata (otherwise it would read "free IsoMedia" and not "freeIsoMedia"). The string looks like standard audio metadata string from google videos, below is an excerpt from an mp4 video downloaded from youtube (it's the audio metadata from the mp4 file read with the "mediainfo" command):

[FONT=monospace]Audio
ID                                       : 2
Format                                   : AAC
Format/Info                              : Advanced Audio Codec
Format profile                           : LC
Codec ID                                 : 40
Duration                                 : 1h 26mn
Bit rate mode                            : Variable
Bit rate                                 : 96.0 Kbps
Maximum bit rate                         : 103 Kbps
Channel(s)                               : 2 channels
Channel positions                        : Front: L R
Sampling rate                            : 44.1 KHz
Frame rate                               : 43.066 fps (1024 spf)
Compression mode                         : Lossy
Stream size                              : 59.3 MiB (23%)
Title                                    : IsoMedia File Produced by Google, 5-11-2011
Encoded date                             : UTC 2014-03-07 16:42:55
Tagged date                              : UTC 2014-03-07 16:44:04
[/FONT]

[vinnywright]

I don't think the "free" string is part of the "IsoMedia" metadata (otherwise it would read "free IsoMedia" and not "freeIsoMedia"). The string looks like standard audio metadata string from google videos, below is an excerpt from an mp4 video downloaded from youtube (it's the audio metadata from the mp4 file read with the "mediainfo" command):

[FONT=monospace]Audio
ID                                       : 2
Format                                   : AAC
Format/Info                              : Advanced Audio Codec
Format profile                           : LC
Codec ID                                 : 40
Duration                                 : 1h 26mn
Bit rate mode                            : Variable
Bit rate                                 : 96.0 Kbps
Maximum bit rate                         : 103 Kbps
Channel(s)                               : 2 channels
Channel positions                        : Front: L R
Sampling rate                            : 44.1 KHz
Frame rate                               : 43.066 fps (1024 spf)
Compression mode                         : Lossy
Stream size                              : 59.3 MiB (23%)
Title                                    : IsoMedia File Produced by Google, 5-11-2011
Encoded date                             : UTC 2014-03-07 16:42:55
Tagged date                              : UTC 2014-03-07 16:44:04
[/FONT]

mediainfo ,,,hay thats a neet little app ,,,,,,thanks for the pointer .

yes the video I posted the hex read from gives the same Audio "Title" as your post ,,,,,,,,but I will go with mine and the assumption it's "FREE" for meeeeee ...LOL

thanks for the new "to me" tool

VINNY

[GreyGeek]

Nice program indeed!

$ mediainfo Apollo_11_launch.mp4 
General
Complete name                            : Apollo_11_launch.mp4
Format                                   : MPEG-4
Format profile                           : Base Media / Version 2
Codec ID                                 : mp42 (isom/avc1/mp42)
File size                                : 25.0 MiB
Duration                                 : 9mn 55s
Overall bit rate mode                    : Variable
Overall bit rate                         : 352 Kbps
Encoded date                             : UTC 2008-10-16 08:35:46
Tagged date                              : UTC 2008-10-16 08:35:46

Video
ID                                       : 2
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : Baseline@L1.1
Format settings, CABAC                   : No
Format settings, ReFrames                : 1 frame
Format settings, GOP                     : M=1, N=31
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 9mn 55s
Bit rate                                 : 225 Kbps
Maximum bit rate                         : 845 Kbps
Width                                    : 320 pixels
Height                                   : 240 pixels
Display aspect ratio                     : 4:3
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)                       : 0.098
Stream size                              : 16.0 MiB (64%)
Title                                    : (C) 2007 Google Inc. v08.13.2007.
Encoded date                             : UTC 2008-10-16 08:35:47
Tagged date                              : UTC 2008-10-16 08:35:47

Audio
ID                                       : 1
Format                                   : AAC
Format/Info                              : Advanced Audio Codec
Format profile                           : LC
Codec ID                                 : 40
Duration                                 : 9mn 55s
Bit rate mode                            : Variable
Bit rate                                 : 125 Kbps
Maximum bit rate                         : 227 Kbps
Channel(s)                               : 2 channels
Channel positions                        : Front: L R
Sampling rate                            : 44.1 KHz
Frame rate                               : 43.066 fps (1024 spf)
Compression mode                         : Lossy
Stream size                              : 8.88 MiB (35%)
Title                                    : (C) 2007 Google Inc. v08.13.2007.
Encoded date                             : UTC 2008-10-16 08:35:46
Tagged date                              : UTC 2008-10-16 08:35:47

Isn't it nice that Google can take public domain property and put their copyright on it?