Amazon.com unveiled the Unbox Video Store on Thursday, a direct rival to Apple\u2019s iTunes 24-7 video store, which allows U.S. users to buy or rent TV shows, movies and other video content from the Internet.Amazon Unbox is offering thousands of DVD-quality videos from\u00a0more than\u00a030 movie and TV studios, which can be stored on up to two PCs and two portable video players at once, the company said. When a user downloads a movie or show, Unbox automatically sends a second download file optimized for Windows Media-compatible portable devices. It also keeps track of media purchases on a personal page at Amazon\u2019s Your Media Library and acts as a backup, allowing users to download video purchases onto an additional PC.Unbox is one of many new services aimed at capturing the growing interest in downloading video from the Internet. The service will compete with similar video download stores such as Apple Computer\u2019s iTunes, and is a direct threat to traditional DVD services from companies such as Blockbuster and Netflix.Users interested in trying Unbox can visit the site. Amazon Unbox is offering a US$1.99 rebate on a user\u2019s first purchase, enough for one free TV show. But new users will have to enter their credit card information into the system first as part of the registration process, and then download the Amazon Unbox Video Player software.Unbox is charging between $7.99 and $14.99 for most movies, and rentals of the latest movies for $3.99.Videos can also be sent as a gift. The company\u2019s Unbox RemoteLoad technology enables users to buy video from one PC, such as their home computer, and download it to another, Amazon said. Apple Computer OS users cannot shop at Unbox. The service only works on Microsoft\u2019s Windows XP. Users with older PCs may also find it difficult to meet Unbox\u2019s hardware requirements. At minimum, a PC needs a 1.5GHz microprocessor and 512MB of memory, such as dynamic RAM, in addition to a DirectX compliant video (64MB) and sound card. Users must also have an Internet connection capable of sustained 800kbps data transfer rates, Amazon said.Unbox is offering a host of special offers to attract new users. From Sept. 14 through Sept. 27, for example, all of the final, cliffhanger episodes from last season\u2019s "CSI," including Las Vegas, Miami and New York, will be on sale for just $0.01, to promote the launch of the new season for all three series.The company is also offering all 79 episodes of the original Star Trek series, including the original pilot. Some of the movies available on Unbox include Inside Man, Failure to Launch, Walk the Line and V is for Vendetta, as well as classics such as Ben Hur and Poseidon Adventure. Some of the major movie studios signed on with Unbox include Universal Pictures, Sony Pictures and Warner Bros. Entertainment.-Dan Nystedt, IDG News Service (Taipei Bureau)Related Links:\n\nApple\u2019s iTunes to Offer Movies for Download?\n\nFilm-to-DVD Burning to be Simplified\n\nFox to Sell Downloadable Films, TV ShowsCheck out our CIO News Alerts and Tech Informer pages for more updated news coverage.