actually, as was discussed earlier…you want 1080p.
1080 is the number of lines that go horizontally. So a 16:9 make it 1920x1080 pixels. The i part is for interlacing, which is what the old analog signal used, which draws every other line on each pass/field. The old CRTs had to use interlacing as it needed to scan from left to right, top to bottom, one pixel at a time which was too slow and the picture would fade before being able to cover the whole screen. The other is p for progressive, which draws every line on each pass/frame. For interlacing, two fields makes up one frame, but you will not get a good still capture.
Most broadcasts in the US are in 720p@60fps or 1080i@30fps, which has about the same number of pixels per second.
Here’s some information that shows and describes what interlaced video is
Wikipedia - Intelace
What is Deinterlacing? Facts, solutions, examples.
Interlaced video is a big PITA when displayed on progressive displays. Computer monitors are progressive. So when you capture video from the TV or a DVD it needs to be deinterlaced to play it properly on a computer. If you’re shooting video for a unicycling video that will be uploaded to the internet you need either set your camcorder to record progressive video or do the necessary processing after the fact to deinterlace your video before compressing it and uploading it.
There have been some unicycling videos posted that had interlacing or interlacing artifacts. It looks ugly. Please fix the interlacing before posting the video. Yes it can be a bit technical to properly remove the interlacing. Yes interlacing is a PITA. But please deinterlace the video if it’s interlaced.
I hate interlacing. It’s not computer friendly at all.
going back to the cracked thing, i wouldnt be suprised that the people that actually market it cracked it. I mean to win against blue-ray it needs popularity, and to get popularity, you need to remove that shitty protection.
And 720p better than 1080p at ANYTHING ??? its just the number of vertical pixels the screen has, so the more the better… well as far as viewing quality is concerned
Cracked is not the right word. I wouldn’t say the HD-DVD content protection has been cracked. It has been worked around but not cracked. Cracked, to me, implies something more extensive than a workaround that works on specific cases.
It still remains to be seen how he is getting the title keys. Will he be able to continue getting title keys in the same way? Will normal people ever be able to run a simple little program that extracts a title key? Will this method of extracting the title key continue to work on future HD-DVDs? Can they revoke a key and break this?
1080p requires more processing power to display. More pixels need to be decompressed which means the CPU and graphics chip have to work harder. More data needs to be read from the hard drive or DVD drive to keep up with the video. The computer has to do more work.
Not all computers can handle the extra demands of 1080p video. A laptop running off of battery power will use more battery power playing 1080p than 720p.
Also consider that many people don’t have a computer monitor that can display the full resolution of 1080p video without shrinking it. 1080p video is 1920x1080. 720p video is 1280x720. My desktop computer has two LCD monitors each at 1280x1024. I can play full resolution 1080p video if I let the video span both monitors, but that doesn’t look good with the split between both monitors. If I play a 1080p video I have to shrink it down to fit on a single monitor and at that point the resolution is no different than a 720p video. The only real difference is that the 1080p video uses more processing power to deliver what is effectively the same content.
720p video looks good on my computer. Playback is smooth. 1080p video looks the same once it is scaled down to play full screen on a single monitor. Playback is also smooth for the 1080p video. I have an Nvideo GeForce 7600GT video card and an Athlon 64 X2 (dual core) 4200 (2200 MHz). Even with this setup playback of 720p and 1080p video uses 35-50% of the CPU even though the graphics card is doing most of the work.
There are sample HD video clips at Apple and Microsoft. Try playing some 720p and 1080p video clips and see how your computer does. Can you see a difference between 720p and 1080p on your monitor? Does the computer choke trying to play 1080p?
Note that with the Apple MOV clips you may get better results on a PC if you change the extension to MP4 and play the video in Windows Media Player or Nero Showtime rather than Quicktime. The Quicktime player uses more CPU and won’t go full screen unless you pay for Quicktime Pro.
Jolly good. I heard that one media player will automatically skip through any sections that are marked unskippable on the DVD - which is great because those are almost certainly the very sections that you’d want to skip 
A case in point: the “piracy is theft” trailers we get on the start of DVDs. When I’ve paid to rent a DVD, it’s really annoying to have the makers presume to educate me in video piracy, and prevent me from skipping over their messages.
This is not only annoying, it’s pointless: if I had got a pirate copy of the DVD it quite likely wouldn’t have had those sections on it in the first place! I continue to pay for buying / renting DVDs because I think it’s fair enough that I pay for content: piracy seems like freeloading. But it does upset me that I still get preached to by the media organisations I’m buying from.
while it is sorta kinda on topic… what exactly is TV quality video?
640x480 30fps?.. its VGA … but what does that mean?
Nice. I was waiting for someone to say that. 
You aren’t the only one.
Millions miffed at poor quality from holiday HDTV purchase
The DRM volume key for that particular movie was extracted from memory while performing playback on a licensed software HD-DVD player like WinDVD or PowerDVD. Oops!
A darknet database storing decryption keys for HD DVD releases would enable open source and home-made software HDDVD players to decrypt various titles without enforcing lame anti-consumer restrictions, but it doesn’t look like it can be created without first using a licensed player to perform the initial key extraction.
Bottom line: The encryption scheme wasn’t cracked, but a weakness in the decryption process was exploited. This is still very good news, and it also seems to me that Blu-Ray might have a similar exploitable weakness.
Excellent.
Actually there are four.
Serenity.HD-DVD.1080p.VC-1.DDPlus.5.1.EVO 19.6gb
Batman.Begins.HD-DVD.1080p.VC-1.DDPlus.5.1.EVO 24.76gb
The.Chronicles.Of.Riddick.HD-DVD.1080p.VC-1.DDPlus.5.1.EVO 24.94gb
Pitch.Black.HD-DVD.1080p.VC-1.DDPlus.5.1.EVO 21.37gb
And there was a huge fuss at the time about tape recorders killing the music industry.
I’m reasonably sure that the original developer of the workaround and the individual who posted the files for torrent downloads are two different people. In the Doom9 forum thread that blew this whole thing wide open, the original developer stated that he or she just wanted to play the content on a non HDCP-crippled monitor. They didn’t even post the actual decryption keys - just a string of clues on how to repeat the process and a video of the decryption in progress with the ripped HD movie playing on uncrippled hardware.
Internet culture and technology has changed significantly since DVD-Jon wrote DeCSS. Broadband connections have gone mainstream and standard hard drives are large enough to hold 100+ DVDs and a dozen or so HD-DVDs. P2P technology has progressed to the point that you can get just about anything digital you want with minimal searching. Why is it that content distributers haven’t kept up with the times? Why don’t they listen to consumer demands? Why can’t we buy and download CD and DVD-quality music and movies on the internet, and have them play on any device we choose? They’re available easily for free (albiet illegally) but yet we can’t buy them that way? “WTF” doesn’t even begin to cover my sentiments on the issue.
In their vast incompetance, content providers created a monster that they can’t fight. The demand is so huge for a product they refuse to provide that culture is even starting to deem the use of P2P as “civil disobediance,” making it the newest, coolest and brain-numbingly easy way to become a rebel. The cat’s out of the bag. Actually, the cat is so far out of the bag, it left the building, went up the block, rode the bus to the airport, renounced it’s citizenship and hopped a one-way flight to Norway.
And still a long way from actually being cracked. In fact, it’s no closer to being cracked than it was before. This utility is not a crack. The encryption has not been cracked. The method of extracting keys is more of an end-run around the encryption. It doesn’t crack the encryption. The program BackupHDDVD just implements decryption based on publicly available information about the encryption methods used for HDDVD.
Freedom to Tinker and Wikipedia have good summaries of what is going on. Freedom to Tinker explains it pretty well.
This whole “crack” relies on being able to read the keys from memory after playing the HDDVD in a software player like CyberDVD or WinDVD. Turned out it was easier than expected to read the key from memory. CyberDVD and WinDVD are the programs doing the actual decryption with the secret keys.
What can happen at this point is that the player keys for CyberDVD and WinDVD get revoked so that they can no longer play new HDDVD releases. CyberDVD and WinDVD will then have to rewrite their programs to make it more difficult to find the keys in memory. They’ll then get new device keys and people will have to upgrade to the new improved version to be able to play the new HDDVD releases. The cat and mouse game will continue like that.
Vista has ways of making it more difficult to read memory contents than XP. I suspect that once Vista gets enough market share that CyberDVD, WinDVD and other software HDDVD players will be forced to make their programs Vista only and not allow them to run on XP. People will then have to figure out how to read the keys from memory in Vista which should/could be more difficult.
So for now they are able to get the decryption keys. In the future it’s not going to be so easy. That’s why this is not a crack.
The stated reason for Muslix64 making BackupHDDVD is he bought an Xbox HD-DVD drive and connected it to his computer. He found he was unable to watch the HD-DVD movies on his HD monitor because his video card and monitor are not HDCP compliant. He found that unacceptable so he wrote a program to allow him to watch the movies on his computer in their full high definition glory.
Info about the whys and whatfores of BackupHDDVD are in the readme files included with BackupHDDVD.
Yeah, it’s an “exploit,” taking advantage of a weakness outside of the HD DVD spec.
A bit more info: Blu-Ray and HD DVD use AES-128 encryption, which is many orders of magnitude more advanced than the old DVD CSS. AES has been in use for general data encryption as a US Government standard since May 2002.
Add two more.
Equilibrium.HD-DVD.1080p.H264.DDPlus.5.1.EVO 17.56gb
Kiss.Kiss.Bang.Bang.HD-DVD.1080p.VC-1.DDPlus.5.1.EVO 12.34gb
He-he-he, he said 768, he-he-he…
…And, as it turns out, Blu-Ray does:
http://blog.wired.com/gadgets/2007/01/bluray_drm_crac.html
The encryption is not “cracked” like all the articles keep proclaiming, but a weakness in WinDVD was exploited in the same way as the HD-DVD scheme: decryption keys extracted from a memory dump.
i’d like to see him crack HVD
now that would be impressive.
1080i broadcast
1080i is the broadcast norm because it uses less bandwidth, which means they can cram more channels in. Interlacing isn’t a PITA, it’s just plain evil…