Blu ray disks are high-definition optical discs used to store data. They can be read by Blu-ray Disk drives and conventional DVD players. The format offers a number of advantages over the existing DVD format, including the capability for higher storage density and more flexible recordable sessions, and compatibility with existing recordable media. Toshiba developed HD-DVD in partnership with Microsoft, which offered similar advantages but was limited to recording only 20-GB per disk.
5 Advantages of Blu Ray Disks:
1. High storage capacity:
Blu ray disks can store 25 GB, 50 GB, or even 100GB of data, far larger than the 4.7 GB and 8.5GB DVDs can hold. Blu-ray disks can also store several hours of video, whereas a DVD holds only 90 minutes of video or one or two episodes maximum.
2. Faster read/write speeds:
Blu-ray disks have a higher data transfer rate and faster speed than conventional DVDs do, allowing users to access the disk much quicker – The average read speed for a 4x Blu-ray drive is around 1 hour per disk as opposed to 2 hours in DVD drives.
3. High Bit Rate
It is stated that Blu-ray discs can bit rates of up to 40 Mbps. Hence, it makes storage of large data sets more possible with less compression.
4. Extra layer storage:
Blu ray disks have an extra layer that allows for more information to be stored. This makes it possible for them to store larger amounts of data and movie video and have more efficient usage of space – This is similar to a double-page spread in a paper book, where a large number of words can be written on one side.
5. Compatibility with existing DVD media:
Blu-ray disks are backward compatible with conventional DVDs to play on most DVD players and devices.
Disadvantages of Blu Ray Disks:
1. Cost:
Blu-ray disks are more expensive to produce than DVDs are. Blu ray drives are also more costly than those for DVD media, so that new PCs may require an upgrade or a dedicated drive added.
2. Not Cheap to make:
Besides the cost of producing a film in a high-definition format, the disks themselves – with each disk costing around $5 to produce each time they are made, this adds up.
3. No choice of media:
DVDRs include both the data and audio tracks in one storage medium, whereas BDs only contain data and leave the audio to be encoded externally – this makes BDs more convenient for a movie watcher but less so for a serious film collector.
4. Need more than one Blu Ray player:
Blu ray disks are currently not compatible with many devices, meaning you will need to buy a Blu ray player that can play your disk on other devices.
5. Not compatible with DVD players:
Blu-ray Discs are not compatible with conventional DVD players, and the consumer has to purchase a new player or burn the Blu-ray Discs into a DVD format, which makes it difficult for some consumers to accept them.
Is Blu-Ray disc worthy of its cost?
If we look at the advantages mentioned above, I think Blu Ray Disc is worth its cost. It can store DVD movies in higher resolution and format, and it’s easy to use for movies – that is the best thing about Blu-ray disk. Many people buy Blu-Ray disks to watch movies.
Moreover, one of the advantages of Blu Ray Disk over DVD is that, since it allows more data to be stored in less space, it can thus be read faster than an ordinary DVD. That’s why most people choose Blu Ray Disk over DVD.
You may think today we do not need a big storage capacity for information products but, in reality, we still need them even nowadays. Many people like the massive storage capacity provided by a large CD or a dual-layer DVD.
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Conclusion:
Blu Ray Disk seems to be the best choice for the future. It is a better option than DVDs because of its cost-effective storage capacity and high-definition video playback. Nobody can deny that Blu Ray Disk is a good product.