As usual a forum thread immediately tosses out numerous suggestions without anyone reviewing or explaining the basics first. Correct me if I am wrong but there are two concrete ways to transfer. A; Wired B: Wireless.
Up to this point all I've read for the wired type is simply .."connect your device to your computer"
Ok... HOW ???
Does the user need the special proprietary adapter (YES) If using the proprietary adapter does the user then additionally need a special Male-to-Male USB cord to then attach the iPad to a PC..(again..YES).
Next question is; do you you have to use the special adapter and a Male-to-Male USB cable or will an iPad charger / USB data cable work in its place instead? (I do not know...anyone???)
The other final "wired" option is to plug a USB thumb drive into the proprietary adapter and tranfer data from the iPad to the thumb drive. How to actually transfer files to a flash drive..(again...I do not know..anyone???).
The Wireless method via WiFi and apps like DropBox or iCloud, etc. are in my opinion only useful for small data transfers and are NOT useful when you need to transfer several gigs of data, especially things like video files. I have tried this in the past many times without success, or with failure. Photos yes...videos no.
Therefore in all cases, a direct wired hook-up from the iPad to PC will always be the fastest / best option.