Major studios are in discussions with Amazon about bringing the online retail giant into Hollywood’s preferred online UltraViolet digital media locker, Bloomberg reports. The continuing talks center on plans to expand UltraViolet for storing and watching movies on tablets such as Amazon’s Kindle Fire and other devices, according to sources cited by Bloomberg. Response has been tepid for UltraViolet, which allows consumers to buy videos and store them online for playback on any device. The studios hope to stimulate the digital market as declining DVD sales have not been supplanted by Blu-Ray and download purchases. Studios backing UltraViolet include Warner Bros, Sony, Fox, Universal, Paramount, Sony and Lionsgate, according to UV’s website. Several retailers have also signed up. But the problem is that there’s not a single unified hub where consumers can access the content they buy. And Disney is developing its own separate system. Apple and iTunes, which have their own online storage service iCloud, also have not embraced UltraViolet for iPads, iPods or iPhones. Amazon has the experience and computer server infrastructure for the kind of storage and playback envisioned by UltraViolet. It already allows its customers to store movies purchased on Amazon. In addition, Amazon also hosts Netflix’s streaming. It’s possible some kind of agreement might be announced at next month’s Consumer Electronics Show in Las Vegas.