i captured one hours worth of video footage from my sony handycam (hi 8 ) to my pc using pinnacle studio 9. this is when i stumble, i then changed it to Avi format and it is now 12gb file.

how can one hour of vid footage turn into 12gb,

so what do i do next to burn it to dvd obviously i need to compress but 12gb to 4,7 im gunnna loose quality. what software is required also

sorry for being a newbie and i did have a hunt around the forum first

thanks inadvance