YFD
hi ive got a ps3 and i have spiderman 3 on blu-ray and also on standard dvd, im also running my system at 1080i....ive watched the blu ray film and it is slightly better than normal dvd played through the ps3, but personaly i dont think the actual film is better quality by much, it is also still very bitty on blu-ray......................But when i play the second cd and go through the making of etc. the picture is as good as perfect........why is this... is it because its an old film and hasnt realy been upgraded....... hope this all makes sence.......i have only got spiderman as well so i cant comment on any other blu-ray film.....if you have any ideas about the blu-ray quality, and why this is, id appreciate it if you could shine some light on it for me..THANKYOU!!
but why is the picture almost perfect on the making of ect
Answer
Under optimum conditions Blu-ray can be great, but a number of things can make the image less than ideal, including:
- a poor master for the movie (only a few Blu-ray films are rated as exemplary, and too many are little better than DVD quality)
- watching too far from the screen to see the detail improvement (Blu-ray should be more detailed, but if you watch from "too far" away the improvement over DVD isn't as obvious. Note that the advertized 6x increase in resolution is actually more like 20-30% maximum). Similarly, a small screen reduces the ability to see improved resolution.
- watching at less than 1080p. Unless the HDTV is actually 1080p ... i.e. 1920x1080 pixels, 1080i is actually downsampled to 720p (or whatever the vertical resolution of the display actually is .. often 768 pixels), which isn't nearly as big an improvement over 480 as 1080 is.
- using an incorrect setting on the Blu-ray player (e,g, 1080i output may be less sharp than 720p)
- using an inferior cable type (HDMI is best, Component can be as good, but may not be since it can be artificially limited to lower resolution. Composite or S-video won't pass an HD signal at all)
As to why the extras would be better than the movie ... that's unusual since often the extras are presented at SD resolution not HD, and look worse. But occasionally they are done in HD video and can look as good (or if the movie is poor quality ... better than) the movie. That's my guess in this case. Movies often look inferior to HD Video camera footage ... which is why stores often use HD video as demo material (or animation, which also looks great in HD ... but also in DVD)
Hope that helps.
Under optimum conditions Blu-ray can be great, but a number of things can make the image less than ideal, including:
- a poor master for the movie (only a few Blu-ray films are rated as exemplary, and too many are little better than DVD quality)
- watching too far from the screen to see the detail improvement (Blu-ray should be more detailed, but if you watch from "too far" away the improvement over DVD isn't as obvious. Note that the advertized 6x increase in resolution is actually more like 20-30% maximum). Similarly, a small screen reduces the ability to see improved resolution.
- watching at less than 1080p. Unless the HDTV is actually 1080p ... i.e. 1920x1080 pixels, 1080i is actually downsampled to 720p (or whatever the vertical resolution of the display actually is .. often 768 pixels), which isn't nearly as big an improvement over 480 as 1080 is.
- using an incorrect setting on the Blu-ray player (e,g, 1080i output may be less sharp than 720p)
- using an inferior cable type (HDMI is best, Component can be as good, but may not be since it can be artificially limited to lower resolution. Composite or S-video won't pass an HD signal at all)
As to why the extras would be better than the movie ... that's unusual since often the extras are presented at SD resolution not HD, and look worse. But occasionally they are done in HD video and can look as good (or if the movie is poor quality ... better than) the movie. That's my guess in this case. Movies often look inferior to HD Video camera footage ... which is why stores often use HD video as demo material (or animation, which also looks great in HD ... but also in DVD)
Hope that helps.
What's the differrence between Blu-Ray and DVD discs?
neal
Answer
Blu-ray has finally won the high definition format war, but that is just the beginning. There is a lot of confusion out there among the general public about the difference between DVD and Blu-ray discs. Although Blu-ray discs look exactly the same as DVDs in size and shape there are many differences between the media, including storage capacity, laser technology, disc construction, image resolution and player compatibility.
1.Storage Capacity
Storage capacity is measured in gigabytes (GB), like computers and iPods. The more GB the disc has more information it can hold.
â¢DVD- Single layer DVDs can store about 4.7 GB of data, Double layer DVDs, or DVD-9s, can store twice the amount of data at 8.7 GB.
â¢Blu-ray- Single layer Blu-ray discs store approximately 25 GB of data,
2.Laser Technology
Lasers are used in both media to read the information stored on the disc. As the disc spins the laser reads the information and transfers both picture and sound to the television.
â¢DVD- DVD players use a red laser at 650nm wave length to read DVD discs.
â¢Blu-ray- Like the name suggests Blu-ray players use a blue laser to read the stored information. Blue laser wavelengths are shorter than the red at 405nm and are about two and a half times smaller in diameter than red lasers.
3.Disc Construction
Physically, Blu-ray and DVD discs are identical. Both media have grooves or pits on their bottom layer than enables the laser to penetrate through and read the stored information.
4.Image Resolution
Image resolution is measured by the number of vertical lines times the number of horizontal lines of light in a picture. It is represented by the number of horizontal lines going across the screen like 480, 720 or 1080. The higher the number the higher the resolution and more detailed the picture.
.
5.Player Compatibility
Some of us are still recovering from the VHS to DVD format switch of almost 10 years ago, slowly upgrading our VHS collections to DVD. Now, there is a new, better format on the horizon and many are still skeptical. However, youâll be happy to hear that all Blu-ray players support DVDs.
Fear not technophobes, the transition from DVD to Blu-ray will be relatively painless once the price of Blu-ray players starts to come down. With the exception of storage capacity perhaps the best thing Blu-ray has going for it is its higher image resolution and compatibility with standard DVDs. To find the Blu-ray player that fits your budget see our Blu-ray DVD players review.
Blu-ray has finally won the high definition format war, but that is just the beginning. There is a lot of confusion out there among the general public about the difference between DVD and Blu-ray discs. Although Blu-ray discs look exactly the same as DVDs in size and shape there are many differences between the media, including storage capacity, laser technology, disc construction, image resolution and player compatibility.
1.Storage Capacity
Storage capacity is measured in gigabytes (GB), like computers and iPods. The more GB the disc has more information it can hold.
â¢DVD- Single layer DVDs can store about 4.7 GB of data, Double layer DVDs, or DVD-9s, can store twice the amount of data at 8.7 GB.
â¢Blu-ray- Single layer Blu-ray discs store approximately 25 GB of data,
2.Laser Technology
Lasers are used in both media to read the information stored on the disc. As the disc spins the laser reads the information and transfers both picture and sound to the television.
â¢DVD- DVD players use a red laser at 650nm wave length to read DVD discs.
â¢Blu-ray- Like the name suggests Blu-ray players use a blue laser to read the stored information. Blue laser wavelengths are shorter than the red at 405nm and are about two and a half times smaller in diameter than red lasers.
3.Disc Construction
Physically, Blu-ray and DVD discs are identical. Both media have grooves or pits on their bottom layer than enables the laser to penetrate through and read the stored information.
4.Image Resolution
Image resolution is measured by the number of vertical lines times the number of horizontal lines of light in a picture. It is represented by the number of horizontal lines going across the screen like 480, 720 or 1080. The higher the number the higher the resolution and more detailed the picture.
.
5.Player Compatibility
Some of us are still recovering from the VHS to DVD format switch of almost 10 years ago, slowly upgrading our VHS collections to DVD. Now, there is a new, better format on the horizon and many are still skeptical. However, youâll be happy to hear that all Blu-ray players support DVDs.
Fear not technophobes, the transition from DVD to Blu-ray will be relatively painless once the price of Blu-ray players starts to come down. With the exception of storage capacity perhaps the best thing Blu-ray has going for it is its higher image resolution and compatibility with standard DVDs. To find the Blu-ray player that fits your budget see our Blu-ray DVD players review.
Powered by Yahoo! Answers
Title Post: spiderman 3, blu-ray vs standard dvd?
Rating: 100% based on 998 ratings. 5 user reviews.
Author: Yukie
Thanks For Coming To My Blog
Rating: 100% based on 998 ratings. 5 user reviews.
Author: Yukie
Thanks For Coming To My Blog
No comments:
Post a Comment