Неа. Та же проблема. (The term 'D:\ бла-бла-бла mp3.avi' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.

Запускал на Powershell 2.0. Может стоит попробовать первый?