Hi, I've been attempting to clear some space on my harddrive, and came across some "Apple Device Software Update File" files on a search. What exactly are these for, and can I delete them? I did a quick search and only found this, which isn't what I need to know. Thanks in advance for any help. Oh and also while I'm here, what is "PCMWave" (at the bottom of the list)??? Location: Mac HD>System>Library>Speech>Voices>Alex.SpeechVoice>Contents>Resources>PCMWave Is this the file for Alex's voice? At over 200mb for a text file it is obviously something important/strange.