It can depend on what track gauge you are modeling. There are various gauges around the world like standard, meter, Italian meter, Russian, Indian, Irish, Scot, Cape, etc.
Thank you.
The Friends were busy storming a beach at the time. Besides, we were only allowed to use the 2 random CMF14 figs provided for Fan Expo.
Day 251 of 365: Friendly Landing by dr_spock_888, on Flickr
Good job. Desiging for 9V or PF train motors is a good solution to power the thing. Otherwise it gets complicated with 4 bogies and drivetrain through multiple turntables.
Are you transfering with the USB cable connected to the camera? Some times it is quicker and easier to take a memory card out of a camera and put it into a memory card reader attached to the PC than try to work though the camera's transfer menu.