DVDs & Blu-ray
DVD Frequently Asked Questions
General
- If dust particles are sticking to the CD surface, use a piece of soft cloth to wipe off the dust. To hold the CD, insert a finger or thumb inside the centre hole of the CD or handle it by the edges but never touch the shiny surface.
- If there are fingerprint marks on the CD surface, dip a soft cloth in Isopropyl Alcohol/Ethanol/Methanol and gently wipe the surface. Never use a petroleum-based solvent like Acetone as that will permanently damage the disc surface.
- When none of the above alcohol-based products are available, use a bottle of Mineral water to clean the dirty CD surface. Normal tap water has higher concentration of salts that may leave white marks on the disc surface.
- Always wipe the disc surface in a non-radial back-and-forth motion (from the centre hole to the outer edge). Don't follow the concentric circles while cleaning.
Region Coding
Therefore, any R4 disc available on Booktopia should be compatible with your player.
All Region 4 discs use the PAL broadcast standard.- Region 1: The US, US territories, Canada
- Region 2: Europe, Japan, Middle East, Egypt, South Africa, Greenland
- Region 3: Taiwan, Korea, the Philippines, Indonesia, Hong Kong
- Region 4: Mexico, South America, Central America, Australia, New Zealand, Pacific Islands, Caribbean
- Region 5: Russia (former USSR), Eastern Europe, India, most of Africa, North Korea, Mongolia
- Region 6: China
Most computer monitors are easily able to display PAL or NTSC output, but if you use a 'TV-Out' port on your graphics card to pass the signal to a TV set you'll need an NTSC-compatible TV for stable colour playback of NTSC discs.
NTSC and PAL
Secondly, there is a slight variation between NTSC and PAL running speeds. Where conventional film runs at 24 frames per second (fps), a TV signal runs at 30 fps (60 fields) for NTSC, or 25 fps (50 fields) for PAL.
For a PAL display, the simple method when transferring film is to present the film frames at 25 a second instead of 24 (the 4% speedup as mentioned above) and speed up the image to be synchronous with the images. The speedup raises the pitch of available audio tracks by one half of one tone although it's questionable as to whether this is distinguishable by the human ear.
The solution for an NTSC display is to spread the 24 film frames across the 60 video fields by alternating the display of the first film frame for 2 video fields and the next film frame for 3 video fields. This process is referred to as 2-3 pull-down and, again, it's questionable whether this process is noticeable to the human eye.
Neither format is inherently better than the other.Screen ratios
Fullscreen presentations fill the entire screen of standard 'square' televisions. If a fullscreen image is viewed on a widescreen television, the screen will be wider than image and black bars will be visible on the right and left sides.
If a widescreen image is viewed in on a standard television, the screen will be taller than the image and black bars visible at the top and bottom. The thickness of these bars will depend on the aspect ratio of the widescreen presentation: the wider the aspect ration, the thicker the black bars.
Anamorphically enhanced DVDs can be viewed just as easily on fullscreen TVs as widescreen ones although the process is usually not discernible. PC monitors, despite almost universally being 4:3, have a higher resolution than TV sets and so can display the widescreen image in a window 854x480 pixels or higher for NTSC, 1024x576 or higher for PAL).
Despite a common misunderstanding, the term 'anamorphic' does not ensure that the image will entirely fill the screen of a widescreen TV set.Audio
Subtitles
Please note that for many pre-release products few details regarding subtitles are confirmed by the studio until the release date is very close. Booktopia displays this information on the site as soon as it becomes available.
Such subtitles streams not only reproduce dialogue in text on the screen but also give visual clues to sonic events taking place on the screen. For example, if the sound of a telephone can be heard then '[phone rings]' or similar text will be displayed.
Blu-ray Frequently Asked Questions
Currently Blu-ray can store 25GB of data on a single layer, which means that dual layer discs can harbour a potential 50GB of HD content. Regular dual layer DVD is only able to present 9GB of SD content.
Dolby Digital (DD): this format (formerly known as AC3) is currently used on existing DVDs and offers up to 5.1 channel digital surround sound.
Dolby Digital Plus (DD+): an extension of DD, this format offers increased bitrates and 7.1 channel surround sound.
Dolby TrueHD: this format offers lossless audio encoding of up to 8 discrete channels.
DTS Digital Surround: this format, currently used for some existing DVDs, offers 5.1-channel surround sound at an increased bitrate to Dolby Digital (DD).
DTS-HD: an extension of DTS, this format offers increased bitrates and up to 8 discrete channels.
Please note: although Blu-ray Disc supports all the above formats, it is dependent on the content manufacturer to decide which are included on the release of a particular disc and you may require an additional hardware decoder to access some formats.Introduced by the film studios due to the staggered theatrical release of movies worldwide and to protect exclusive markets, region coding is intended as a method of ensuring discs would be playable only in certain geographical locations.
Region A: North America, South America, East Asia except for ChinaRegion B: Australia, New Zealand, Europe and Africa
Region C: China, Russia and other countries
- If dust particles are sticking to the CD surface, use a piece of soft cloth to wipe off the dust. To hold the CD, insert a finger or thumb inside the centre hole of the CD or handle it by the edges but never touch the shiny surface.
- If there are fingerprint marks on the CD surface, dip a soft cloth in Isopropyl Alcohol/Ethanol/Methanol and gently wipe the surface. Never use a petroleum-based solvent like Acetone as that will permanently damage the disc surface.
- When none of the above alcohol-based products are available, use a bottle of Mineral water to clean the dirty CD surface. Normal tap water has higher concentration of salts that may leave white marks on the disc surface.
- Always wipe the disc surface in a non-radial back-and-forth motion (from the centre hole to the outer edge). Don't follow the concentric circles while cleaning.
DVD & Blu-ray Classifications
Generally, all DVDs and Blu-rays released in Australia will be classified. Only a narrow range of films may be exempt from classification. These titles may be marked as exempt.
G is an advisory classification The content is very mild in impact. G films are for general viewing. While many G films are for children, not all will be of interest to them.
PG is an advisory classification The content is mild in impact. PG films contain material that a parent or carer might need to explain to younger children.
M is an advisory classification The content is moderate in impact. M films are not recommended for people aged under 15 as a level of maturity is required.
MA 15+ is a legally restricted classification The content is strong in impact. MA 15+ films are not suitable for people aged under 15. A person aged under 15 cannot purchase an MA 15+ film.
What is the difference between M and MA 15+? There is no legal restriction on who can see an M film. The content for M films are moderate and a mature perspective is required. M films are recommended for people aged 15 or older. A person needs to be 15 or older to purchase an MA 15+ film. The content is strong and unsuitable for people aged under 15.
R 18+ is a legally restricted classification The content is high in impact. R 18+ films are not suitable for people aged under 18. People aged under 18 cannot purchase an R 18+ film.
^ back to topDVD & Blu-ray Returns
Booktopia will not pay for postage if you are returning an item because you have changed your mind, or made a mistake in your ordering.
Booktopia will provide instructions for returning the item. If the product is damaged upon receipt in our warehouse, we are unable to accept the return and the item will be mailed back to you.If your item was damaged between leaving our warehouse and arriving at your delivery address, you must message Booktopia with your order number and the condition of your item/s within 2 days of the recorded delivery date.
Booktopia will replace the DVD or Blu-ray, depending on availability once the original disc is received back. Booktopia will provide instructions for returning the item. Refunds will not be processed unless a replacement cannot be provided.Booktopia will replace the DVD or Blu-ray, depending on availability once the original disc is received back. Booktopia will provide instructions for returning the item. Refunds will not be processed unless a replacement cannot be provided.
Booktopia will replace the DVD or Blu-ray, depending on availability once the original disc is received back. Booktopia will provide instructions for returning the item. Refunds will not be processed unless a replacement cannot be provided.