I understand that the flash is different in the iPhone 5S, how?

clear any past stored passwords. reset unit and put into discovery mode. Usually holding the pair button for a few seconds puts the LED blue into fast flashing - discvery mode

The physical differences between the iPhone 5 and 5S are the camera flash and the home button. iPhone 5 has a single LED flash while the iPhone 5S has a dual LED flash. And the iPhone 5 home button doesn't have the circular ring around the button which is the finger print sensor unlike on the iPhone 5S.

Yes, the iPhone 5S can be mirrored on your Apple TV congruently with audio sound. Taken from Apple iPhone 5s Technical Specifications :

"AirPlay mirroring and video out to Apple TV (2nd and 3rd generation)"

The Touch ID feature in the Apple iPhone 5S detects the iPhone owner's fingerprint and uses it kind of as a password, unlocking the phone and allowing purchases.
The more the feature is used the better the phone detects the fingerprint. The system can detect the fingerprint from different angles and rotations.

The new Apple iPhone 5C is very similar to the iPhone 5 both in software and hardware. The real difference between the two is their appearance.
Differently from the older iPhones 4s and 5, and the newer iPhone 5S, made of alluminium and glass, the iPhone 5C has an outside structure of polycarbonate, which makes the phone more resistant and similar to other plastic-based phones. Another big change was the color range. The iPhone 5C comes in 5 different very bright colors, only seen on iPods before.

No, that is one of the main differences between the 5s and the 5c only the 5s comes with the fingerprint scanner.

Basically, the iPhone 5C is much cheaper and basic and was
built in order to penetrate the Chinese market. It looks like an iphone and has 5 bright colors but it is much more simple and basic than the regular iphone. If you want to read more about the differences between the 2 types of phone, click here:
http://readwrite.com/2013/09/10/phone-5s-5c-difference#awesm=~oh77oRWGwvY05s

DVDXCOPY has been shut down for many years, their are a few people still selling it knowing it can't be activated. Their were a few sites that carried activation codes that worked. In all reality its not a very good program, I started out using it and switched to DVDFAB Platinum and haven't found anything it wouldn't copy, it also shrinks long movies to fit on a 4.7 DVD.