Everything You Want to Know About Blu-ray

Diana Joan

Jul 08, 2016 08:41 am / Posted by Diana Joan | Categories: Knowledge

Speaking of HD video, you must think of Blu-ray. Yes, Blu-ray 1080p movie is the HD video you can see nowadays when 4K is not used in videos. So do you really know Blu-ray? Do you know how to play Blu-ray? Here, let’s talk about Blu-ray.

What is Blu-ray?


Blu-ray (not Blue-ray) also known as Blu-ray Disc (BD), is the name of a new optical disc format jointly developed by the Blu-ray Disc Association (BDA), a group of the world’s leading consumer electronics, personal computer and media manufacturers (including Apple, Dell, Hitachi, HP, JVC, LG, Mitsubishi, Panasonic, Pioneer, Philips, Samsung, Sharp, Sony, TDK and Thomson). 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. This extra capacity combined with the use of advanced video and audio codecs will offer consumers an unprecedented HD experience. 

While current optical disc technologies such as DVD, DVD±R, DVD±RW, and DVD-RAM rely on a red laser to read and write data, the new format uses a blue-violet laser instead, hence the name Blu-ray. Despite the different type of lasers used, Blu-ray products can easily be made backwards compatible with CDs and DVDs through the use of a BD/DVD/CD compatible optical pickup unit. The benefit of using a blue-violet laser (405nm) is that it has a shorter wavelength than a red laser (650nm), which makes it possible to focus the laser spot with even greater precision. This allows data to be packed more tightly and stored in less space, so it’s possible to fit more data on the disc even though it’s the same size as a CD/DVD. This together with the change of numerical aperture to 0.85 is what enables Blu-ray Discs to hold 25GB/50GB. Recent development by Pioneer has pushed the storage capacity to 500GB on a single disc by using 20 layers.

What video codecs will Blu-ray support?

MPEG-2 – enhanced for HD, also used for playback of DVDs and HDTV recordings.
MPEG-4 AVC – part of the MPEG-4 standard also known as H.264 (High Profile and Main Profile).
SMPTE VC-1 – standard based on Microsoft’s Windows Media Video (WMV) technology.

Read: VC-1 vs. AVC, Which is better?

Please note that this simply means that all Blu-ray players and recorders will have to support playback of these video codecs, it will still be up to the movie studios to decide which video codec(s) they use for their releases.

What audio codecs will Blu-ray support?

Linear PCM (LPCM) – up to 8 channels of uncompressed audio. (mandatory)
Dolby Digital (DD) – format used for DVDs, 5.1-channel surround sound. (mandatory)
Dolby Digital Plus (DD+) – extension of Dolby Digital, 7.1-channel surround sound. (optional)
Dolby TrueHD – lossless encoding of up to 8 channels of audio. (optional)
DTS Digital Surround – format used for DVDs, 5.1-channel surround sound. (mandatory)
DTS-HD High Resolution Audio – extension of DTS, 7.1-channel surround sound. (optional)
DTS-HD Master Audio – lossless encoding of up to 8 channels of audio. (optional)

Please note that this simply means that Blu-ray players and recorders will have to support playback of these audio codecs, it will still be up to the movie studios to decide which audio codec(s) they use for their releases.

Learn Knowledge about Dolby TrueHD, Dolby Digital AC3, DTS Surround Sound, DTS-HD Master Audio.

Also learn >> Difference between Dolby TrueHD and DTS HD Master Audio

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.

Rip/Decrypt/Convert Blu-ray to Digital Files

No matter you want to protect your expensive Blu-ray discs or want to make a digital copy of Blu-ray to streaming on portable devices, here has the solution for you.

Blu-ray to Format

Blu-ray to MP4 Blu-ray to MKV Blu-ray to AVI
Blu-ray to MOV Blu-ray to 3GP Blu-ray to MPEG
Blu-ray to WMV Blu-ray to FLV Blu-ray to MOV

Blu-ray to Device

Blu-ray to iPhone SE Blu-ray to Amazon Fire Phone Blu-ray to PS4
Blu-ray to iPad Air 3 Blu-ray to Gear VR Blu-ray to Surface Pro
Blu-ray to Galaxy Tab 3 Blu-ray to Xbox One Blu-ray to Surface Book

Blu-ray to NAS/Media Server

Blu-ray to Portable Hard Drive Blu-ray to ASUSTOR NAS Blu-ray to DiskStation DS214play
Blu-ray to Emby Media Server Blu-ray to Synology DS416 Blu-ray to Plex

Blu-ray Ripper/ 3D Blu-ray Ripper/Multi-track Blu-ray Ripper

You can use Blu-ray Ripper to rip Blu-ray to digital format and device on your own. Below are some popular Blu-ray ripping tool reviews.

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– Rip Blu-ray encoded with VC-1 and AVC

– Decrypt Blu-ray AACS, BD+, UOP up to MKB61.

– Convert Blu-ray to MKV with lossless quality.

– Re-encode Blu-ray to multi-track MOV, MP4, AVI.

– Create 3D SBS MP4/MKV from 3D Blu-ray to Gear VR, HTC Vive, Oculus Rift, etc.

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