Here's the deal: I have a ton of software that I use daily for fixing machines, and frankly, it's getting to the point where carrying around a binder with God knows how many CDs is starting to piss me off. Now, yes, I could dump the stuff to a DVD, but not everyone has a DVD reader (and I'd still need to carry around a binder for those DVDs.. since there'd be more than one), and as such it's just not a viable solution unless I'm archiving these tools/apps. The obvious choice was to get a USB pen drive (for the quick and dirty apps), or USB external 2.5" hard drive (so I can store EVRATING!). There is one little glitch: While I have no fear of running some of these tools on machines that are infected with viruses since CDs and DVDs are write protected (like, duh), USB drives, however, are not UNLESS I get one that has a physical switch to write protect them. This leads me to a question: are there any software write protect programs for USB drives that you guys can recommend? I've been searching around for a bit, but all I can find are tools for password protecting or encrypting files/folders on drives. This is great for protecting the data on the drives initially, but once I unprotect a folder in order to read it.. well.. then that folder or drive is wide open to be read to. I've also seen apps that tie a USB drive to a single machine (so it can't be used on another one without formating it), but again, that defeats my plans. Anyways, as I said, I could just go out and pickup a USB pen drive that has a physical write protect switch on it, and I may very well have to, but if I wanted to go with a USB hard drive (so that I could go nuts and dump terrabtyes of apps on it), or with a pen drive that is very large (in which case most don't have a write protect switch), I'd be right back to trying to find something that would give me write protection for the drive, but still allow me to read from it... on any machine. Any suggestions? Edit: BTW, if someone can point me to a 2.5" external box that has a write protect switch on it, by all means, please let me know.