Dell Inc. (DELL) is running a promotion that gives customers $100 off on some of its Dell Digital Jukebox music players if customers send in to the No. 1 personal computer maker their old Apple iPods to be recycled, the company said on Wednesday.

The mail-in rebate offer applies to Dell's 15-gigabyte music player, which carries a regular price of $199, said the Round Rock, Texas, company. The player has a battery life of about 20 hours, about two times that of Apple Computer Inc.'s (AAPL) market-leading iPod, Dell said.

Apple's iPod (search) and iPod mini players, which range in cost from $249 to $499 depending on their capacity, have more than 50 percent of the market for digital music players, adigind even more when measured by revenue, Apple has said.

Apple's 15-gigabyte iPod costs $299 and weighs 5.6 ounces and Dell's player weighs 7.61 ounces, according to the companies' Web sites.

Dell last fall launched 15-gigabyte and 20-gigabyte versions of its music players that hold about 7,000 and 9,000 songs, respectively, the company said.

According to the Web site, Apple's 15-gigabyte iPod holds 3,700 songs and its highest-capacity 40-gigabyte iPod holds 10,000 songs. Analysts have praised the iPod for its ease of use and simple interface.

Dell's player works with online music stores that use the MP3 and Microsoft Corp.'s (MSFT) Windows Media Audio formats, while Apple's iPod only works with its own iTunes online music store.

A spokesman for Cupertino, California-based Apple declined to comment.