Blu-ray Movies coming on 2+ discs

Hd video takes up more space, less room for extras.BrettB7400

what he says...

dose anyone even watch the stuff on the extra disc it's just a bunch of junk.dangerd0g24

Haha yeah that's what I always think. I don't need to hear the director blab on about the movie... I don't care - I just want to see the movie.

dose anyone even watch the stuff on the extra disc it's just a bunch of junk.dangerd0g24

[QUOTE="dangerd0g24"]dose anyone even watch the stuff on the extra disc it's just a bunch of junk.LtColJaxson

Haha yeah that's what I always think. I don't need to hear the director blab on about the movie... I don't care - I just want to see the movie.

There are some movies that have some really great, informative extras. The value of these things really changes with how much you like the movies and how much of a movie buff you are. For instance, isn't it cool to know that the reason the sword fight scene in Raiders of the Lost Ark went the way it did (with the gunshot) was because Harrison wasn't able to do the sword work cause he wasn't feeling good? That's a classic scene that has been hinted at in the other Indy films and was purely an accident cause Harrison went, "Can't I just shoot him instead?"

Because the video is High Definition :| HD video files are much larger than SD. Of course if they released a non-HD movie, then everything would be on one disc.Rob_101

well does it really take up 5 times the amount of space a sd movie had to use? and they come out with classic movies on blu-ray why does it have to come on a bunch of discs? for exampe ( http://www.amazon.com/Die-Hard-Collection-Vengeance-Blu-ray/dp/B000W4HIY0/ref=sr_1_3?ie=UTF8&s=dvd&qid=1210594080&sr=1-3) the die hard collection can be purchased on blu-ray but cant all of the movies fit onto one disc since they were originally made in sd?

rollover the image that says "notes" underneath it and youll see all four discs crammed into the box when only 1 is neededCalmed_Fury

idk...they're prolly optimized or mastered it in HD including the sound and included more junks

Narnia is a very long movie, a movie that is over 2 hrs long is going to nearly take all the 50 gb if they do a high quality transfer. Of course you could go on the cheap like HD-DVD did but Disney tries to make the picture look the best (which takes up a ton of space).

Add in the extras in hidef and you have no choice but to put it on two discs.

dose anyone even watch the stuff on the extra disc it's just a bunch of junk.dangerd0g24

They wouldn't take the time and money to make the extras if no one wanted it.

Essentially stuidos are hoping that the new hidef extras become an incentive to buy Blu-ray instead of DVD. Based on what I've seen the majority of people would prefer the cheaper version.......most just care about the movie, which doesn't bold well for Blu-ray overtaking DVD anytime soon.

Disney tries to make the picture look the best (which takes up a ton of space).

darthogre

how much space is (a ton of space)?

Of course you could go on the cheap like HD-DVD diddarthogre

That's just an idiotic statement. The movies were identical encodes on movies that appeared on both formats and the professionals all agree that there is no quality difference between the picture of the 2. There existed a triple-layer 51gb HDDVD which, as you can probably guess, holds more than the current dual layered 50gb BDs.

Most HDDVDs were on the 30gb discs and quite a few BDs are on the 25gb discs. This is because the more expansive discs are also the most expensive and more difficult to produce (particularly in the case of the BD50).

To answer the OP's question: If you encode an HD movie and a lossless soundtrack, that takes up a lot of space. Most studios are just now starting to record their extras in HD, so as we see more extras come in HD we'll see even more space needed. Let's hope those theoretically possible larger BDs see the light of day.

Why are Blu-ray movies being released on two discs? A blu-ray disc can hold 25gb (50gb if dual layered) while a dvd can only hold 5gb (10gb if dual layered). So it makes sense for dvds to come on 2 or more discs in a special edition, but why do blu-ray movies have to? I keep seeing this Narnia commercial for a 2 Blu-ray disc set BUT WHY????????? There is NO reason for it to be on 2 blu-rays when it could be on one!!!!!!!!!!!!!! Anyone else notice this or have any idea why they do this? Calmed_Fury

dvds hold 4.7 on the first layer all together it has 8.5gbs .

[QUOTE="Rob_101"]Because the video is High Definition :| HD video files are much larger than SD. Of course if they released a non-HD movie, then everything would be on one disc.Calmed_Fury

well does it really take up 5 times the amount of space a sd movie had to use? and they come out with classic movies on blu-ray why does it have to come on a bunch of discs? for exampe ( http://www.amazon.com/Die-Hard-Collection-Vengeance-Blu-ray/dp/B000W4HIY0/ref=sr_1_3?ie=UTF8&s=dvd&qid=1210594080&sr=1-3) the die hard collection can be purchased on blu-ray but cant all of the movies fit onto one disc since they were originally made in sd?

Standard definition movies are 640x480, for a total of 307,200 pixels. HD is up to 1920x1080 for a total of 2,073,600. That is almost 7 times the pixels. With more recent codecs, they can bring the movie down to 2 or 3 times the size, but then there is the audio. Much of the audio is uncompressed or at a very low compression and high sampling rate. So yes, the movies take up quite a bit more. I wouldn't know if 2 discs are actually required though until I get my hands on one of these movies and a BD drive for my PC.

[QUOTE="Calmed_Fury"]Why are Blu-ray movies being released on two discs? A blu-ray disc can hold 25gb (50gb if dual layered) while a dvd can only hold 5gb (10gb if dual layered). So it makes sense for dvds to come on 2 or more discs in a special edition, but why do blu-ray movies have to? I keep seeing this Narnia commercial for a 2 Blu-ray disc set BUT WHY????????? There is NO reason for it to be on 2 blu-rays when it could be on one!!!!!!!!!!!!!! Anyone else notice this or have any idea why they do this? iamanoobkillme

dvds hold 4.7 on the first layer all together it has 8.5gbs .

thanks for the exact numbers i was just ballparking it

i bet they used two 25gb discs . also they just wanted to put in a bonus disc. many companys do that .iamanoobkillme

I know that many companies like to say "bonus disc included" but I am saying that I would rather have all 4 die hard movies on 1 disc with a menu screen at the beginning of the blu-ray that allows me to select which of the 4 movies i would like to watch so that i dont have to change blu-rays ever time. same as the narnia extras, i would like it all to be on one 50gb blu-ray rather than 2 25gb blu-rays

As someone eluded to earlier, the real issue here is the audio. We're not just talking CD quality audio or the 16-bit, 48000Hz streamed audio you get on DVDs. Let's just say that 5 minutes of audio in DVD quality format (16-bit, 48000Hz) is roughly 60MB. That same length of audio in BluRay format (optimally 24-bit, 96000Hz) is about 90MB. So multiply that by 40 for a 2 hour movie, then multiply that by 6, 7, or 8 depending on how many channels of surround sound there are, and you get over 25GB of sound. That's why MGS needed 50GB. That's one whole Bluray for just sound. I'm sure that audio on most movies or games gets compressed somewhat to save space, but the really serious audiophiles (Kojima) opt for the purest sound available. What's the use of having the extra space if you're not gonna use it?

btw, I work in music/audio production so that's why I can give you numbers. These are estimates since I'm not looking at any project specs right now, but they're definitely in the ball park.

It's not just the resolution that is larger... but the bitrate. Think of how mp3's used to be standard at 128kbps, and now usually are 256bps (2x) and variable. Well movie content is also variable bit rate. DVD's run on average 3-5mbps, and I've seen blurays go upwards of 30mbps. Press select while watching a DVD or bluray on the PS3, and check the top right corner. You'll see the audio and video bitrates. Mbps is the video.

Thus watching 700kbps feeds on gamespot look a lot better than 300kbps. If a scene of video doesn't change from frame-to-frame, it stays the same resolution, but you don't need to re-send all the information, just the "changed" pixels. This saves bandwidth... and you can see this in action in a PBS HD scene, where the leaves are blowing but the grass is still. The grass will kind of pixelate usually. Medium sized squares will jump back and forth.

I'm no expert, but I believe this is how digital video works. I may be wrong.