Some tests have been conducted to find out actually how much DRM sucks—battery life, that is. The general results is a loss up to 25 percent of battery life when playing back songs laced with WMA 10 ...

What ever happened to removable batteries? I'm not just talking about the alkaline variety, but the user-replaceable kind that were also rechargeable. It appears as if they have gone out of fashion, ...

A study recently demonstrated that playing back MP3 and WMA files encoded with DRM (digital rights management) copy protection can reduce battery life up to 25% . One of the most important factors ...

I've recently purchased a very small mp3 player which runs on a single AAA battery. It came with a non-rechargeable battery, but I don't really want ot keep replacing it. Is there a particular type of ...

If your smart phone just isn't cutting it for playing music and movies on long-distance journeys, the Cowon X9 could help -- it's packing three times as much battery life as the iPod touch, for ...