More bad news for Sony's UMD format: after word last month that several studios were cutting back on UMD releases or dropping support for the format entirely, it now looks like the discs are about to lose coveted shelf space in America's largest retailer.

ENGADGET: UMD about to be ditched by Wal-Mart?

The pack-in copy of The Fifth Element still looks as bad as ever but other Blu-ray releases show the potential of the format.

ENGADGET: Sony BDP-S1 Blu-ray player reviewed HD