I took the test, and passed with a high score. Work is January thru February here (NM), and you get paid for your training as well as field work. If you're out of work, it might be an option for some...

Not naming a competitor (meaning Google) simply reduces the number of references to the competitor on the Web and elsewhere, and reduces the likelihood of someone going to a direct competitor.
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Most programming editors have a "Save As" feature that let you save to some other name or to another directory.
When you edited your attachment, then saved, the attachment was saved to the TEMP...

It's odd that the DVD configuration wasn't set up right in the first place, but at least the tech had the right information to get your DVD running.

Sounds like you need to make a trip back to the dealer. If you bought it over the Internet, maybe you got a PC with a DVD drive set up for another region.