Disclosed is a transport device in a video system which uses a hybrid video codec. The transport device includes a first video encoder which encodes a first video using a first video codec, a second video encoder which encodes a second video using a second video codec, and a delay buffer for synchronizing a delay time for the first video and the second video, based on a buffer size of if a first transport stream system target decoder (T-STD) stipulated in the first video encoder and a buffer size of a second T-STD stipulated in the second video encoder.