As for these two vying formats, both use a blue laser (contrary to red laser for DVDs). The blue laser has a shorter wavelength leading to finer signal markings on optical media. Moreover, a shorter wavelength, associated with advanced compression process, prompts a higher storage capacity. Whereas HD-DVD holds 30 gigabytes, Blu-ray holds 50 gigabytes on a double-layer disc.

Professional video industry is one of most prosperous. Not surprisingly, engineers and manufacturing professionals, producers, video and audio professionals, web developers, broadcasters, directors, DVD authors, editors, graphic artists, gather on annual worldwide electronics and digital video exhibitions to learn newly techniques, technologies, capabilities, advantages related to their industry. There are seven major exhibitions: DV-Expo, Mediacast, DVD Europe, DVD Replication Exhibition, DVD Summit - Midle East Asia, Media-Tech, Production-Show.

Live Event Production Services

By recording live award shows, live concerts, music festivals outdoor, corporate events and variety shows, entertainment industry has given a whole new significance to videography industry. There are now many professional companies doing this job at very high quality levels. They have to register/shoot and edit what is happening on stage, but also:

* to integrate various moments: show itself, short interviews before and after, what is called "behind scenes", very appreciate by artists themselves and audience, too * finally, to pack all formats: live orchestras, audio and video playback, television production, sound systems and put on a DVD format to deliver * to authorize product

Given fact that these kind of video productions has additionally a documentary value, they are highly rated in entertainment industry. Besides,

1. easiness of delivering and playing in home theater or on long trips by car 2. compatibility and 3. connectivity on different advanced players

make live event productions very popular, too. And all these, thanks to yielding DVDs revolution.