What is Bluray Disk and why do i need a bluray ripper?

• Q1. What is Blu-ray?
• Blu-ray, also known as Blu-ray Disc (BD) is the name of a next-generation optical disc format. The format was developed to enable recording, rewriting and playback of high-definition video (HD), as well as storing large amounts of data. The format offers more than five times the storage capacity of traditional DVDs and can hold up to 25GB on a single-layer disc and 50GB on a dual-layer disc.

• Q2. How much data can you fit on a Blu-ray disc?
• A single-layer disc can hold 25GB.
• A dual-layer disc can hold 50GB.
• To ensure that the Blu-ray Disc format is easily extendable (future-proof) it also includes support for multi-layer discs, which should allow the storage capacity to be increased to 100GB-200GB (25GB per layer) in the future simply by adding more layers to the discs.

• Q3. How much video can you fit on a Blu-ray disc?
• Over 9 hours of high-definition (HD) video on a 50GB disc.
• About 23 hours of standard-definition (SD) video on a 50GB disc.

• Q4. Will Blu-ray replace DVDs?
• A. Yes, that's the expectation. The Blu-ray format has received broad support from the major movie studios as a successor to today's DVD format. In fact, seven of the eight major movie studios (Disney, Fox, Warner, Paramount, Sony, Lionsgate and MGM) have released titles in the Blu-ray format. Many studios have also announced that they will begin releasing new feature films on Blu-ray Disc day-and-date with DVD, as well as a continuous slate of catalog titles every month.
• However, the two formats (Blu-ray and DVD) will most likely co-exist for quite some time until HDTVs become more widespread.

• Q5. Why should I upgrade from DVD to Blu-ray?
• A. The simple answer is HDTV. If you've ever seen high-definition (HD) video on an HDTV, then you know just how incredibly sharp the picture is and how vivid the colors are. In fact, HD offers five times the amount of detail compared to standard-definition (SD). The problem with today's DVDs is that they only support SD and don't have the necessary storage capacity to satisfy the needs of HD. That's where Blu-ray comes in, it offers up to 50GB of storage capacity and enables playback, recording and rewriting of HD in all of the HD resolutions including 1080p. The format also supports high-definition audio formats and lossless audio.

• Q6. What is the difference between Blu-ray and DVD?
• Parameters Blu-ray DVD
Storage capacity 25GB (single-layer) 4.7GB (single-layer)
50GB (dual-layer) 8.5GB (dual-layer)
Laser wavelength 405nm (blue laser) 650nm (red laser)
Numerical aperture (NA) 0.85 0.60
Disc diameter 120mm 120mm
Disc thickness 1.2mm 1.2mm
Protection layer 0.1mm 0.6mm
Hard coating Yes No
Track pitch 0.32µm 0.74µm
Data transfer rate (data) 36.0Mbps (1x) 11.08Mbps (1x)
Data transfer rate (video/audio) 54.0Mbps (1.5x) 10.08Mbps (<1x)
Video resolution (max) 1920×1080 (1080p) 720×480/720×576 (480i/576i)
Video bit rate (max) 40.0Mbps 9.8Mbps
Video codecs MPEG-2 MPEG-2
MPEG-4 AVC -
SMPTE VC-1 -
Audio codecs Linear PCM Linear PCM
Dolby Digital Dolby Digital
Dolby Digital Plus DTS Digital Surround
Dolby TrueHD -
DTS Digital Surround -
DTS-HD -
Interactivity BD-J DVD-Video

• Q7. Why is Blu-ray Ripper much better than DVD Ripper?
• DVD ripper can rip DVDs, However, Blu-ray ripper can rip blu-ray disks as well as DVDs. Blu-ray disk is famous for its super big size and high definition, more and more people are crazy for the HD impact brought by the blu-ray tech, and blu-ray decryption is becoming hotter and hotter in the high-tech industry. Moreover, ripping DVDs is also a piece of cake for the blu-ray ripper.

• Q8. Why choose Earth Bluray Ripper?
• Earth Bluray Ripper, perfect ripping blu-ray solution, can rip blu-ray disks and common DVDs to all the popular video formats, like AVI, WMV, FLV, MPEG, MP4, MKV, RM, 3GP, 3GPP2, MOV, SWF, etc., and extract audios, like MP3, WAV, WMA, OGG, M4A, AAC, AC3, AIFF, AU, RA, etc., from the movie. One ripper is completely enough for your blu-ray ripping, and just click it! Moreover, preview, clip, auto-shutdown, snapshot, customize, batch processing, etc. are built in the ripper to give you more, more and more. Absolutely strong ripping engine offers you a strong guarantee on finishing your work easily and fast.


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