Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion.

Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules.

 

Go Back   Doom9's Forum > General > Decrypting

Reply
 
Thread Tools Search this Thread Display Modes
Old 29th January 2019, 12:31   #1  |  Link
sebastiang
Registered User
 
Join Date: Jan 2019
Posts: 13
How does one rip a DTheather tape to a PC (without output capturing)?

I don't own any DTheater tapes nor a player, but I'm interested in how does one backup their tapes. I've seen some rips online, but I couldn't find any information how they did it. Thank you for help.
sebastiang is offline   Reply With Quote
Old 29th January 2019, 20:53   #2  |  Link
Stereodude
Registered User
 
Join Date: Dec 2002
Location: Region 0
Posts: 1,436
The players have Firewire, but I can't imagine why anyone would bother.
Stereodude is offline   Reply With Quote
Old 29th January 2019, 21:26   #3  |  Link
sebastiang
Registered User
 
Join Date: Jan 2019
Posts: 13
Aren't they copy protected? According to Wikipedia:
Quote:
Most tapes have built-in copy protection mechanism (DTCP, also known as "5c") (copy never) that disables copying via FireWire.
Yet online you can find 1080i rips (for example K-Pax).

Last edited by sebastiang; 29th January 2019 at 21:31.
sebastiang is offline   Reply With Quote
Old 30th January 2019, 00:23   #4  |  Link
jerrycan
Registered User
 
Join Date: Nov 2017
Posts: 17
I believe there was some settop box that could decrypt the tapes. It was supposed to do encrypted media passthrough via FW and decrypted output via analog cables. However, due to a bug in the implementation, the box would decrypt the tape and pass the decrypted stream out via FW. So, all you had to do was hook up the box to your PC and run some sort of stream capture software. I'm probably wrong on some of the details but that's my basic recollection.
jerrycan is offline   Reply With Quote
Old 31st January 2019, 23:52   #5  |  Link
Dandu
Registered User
 
Join Date: Feb 2014
Posts: 14
Actually, you can capture directly the analog output via HDMI or YUV, too (i think many rip use this old fashion way)

And for Wikipedia, especially with obscure format like that, there is error.

They said "There has never been a D-Theater video release in region 2 or 3". But i have a Region 1/2/3 DVHS (and i can read it on a D-VHS japanese deck).

Last edited by Dandu; 31st January 2019 at 23:55.
Dandu is offline   Reply With Quote
Old 2nd February 2019, 01:11   #6  |  Link
jerrycan
Registered User
 
Join Date: Nov 2017
Posts: 17
Quote:
Originally Posted by jerrycan View Post
I believe there was some settop box that could decrypt the tapes. It was supposed to do encrypted media passthrough via FW and decrypted output via analog cables. However, due to a bug in the implementation, the box would decrypt the tape and pass the decrypted stream out via FW. So, all you had to do was hook up the box to your PC and run some sort of stream capture software. I'm probably wrong on some of the details but that's my basic recollection.
Okay, I found the link. Basically, you need the right hardware if you want to copy/dump D-Theater tapes without using the analog hole. I get why people use the analog hole. I just prefer to stick to the original data whenever possible.
jerrycan is offline   Reply With Quote
Reply

Tags
dtheather, dvhs

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 09:36.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.