Type 1 to type 2 - direct stream copy and loosing quality

[kb1985]

Usually when I edit video I cut it using Virtual Dub.

I have one DV movie divided into several files (about 1,8 GB each).
They are type-1 DV's.

For some reasons I want to change them to type-2 DV's but still keep the 1,8 GB size per file (of course as a result I will get more files).

How can I do this without loosing any quality?

I downoladed "DV type-1 to type-2 converter" and created type-2 files, but they are too big (they exceed 1,8 GB each). I was thinking about opening those files in Virtual Dub and selecting direct stream copy in audio and video. Is it the proper way? Won't that affect the video?

[junkmalle]

I checked: recent versions of VirtualDub (I used 1.6.9) create type 2 files out of type 1 if you use Direct Stream Copy for both the audio and video.

AVI files normally have explicit audio and video streams. When DV is captured to a type 1 DV AVI file the multiplexed (as received from the camcorder) video and audio are saved as a single video stream. Some programs understand the audio is in the video stream, others don't. A type 2 file has a second copy of the audio stream explicitly saved as an audio stream.

When VirtualDub 1.6.9 Direct Stream Copies the audio from a type 1 DV AVI file it automatically copies the audio from the video stream and saves it as an uncompressed PCM audio stream.

[kb1985]

thx

ps. i had an old version of virtual dub that couldn't read audio from type-1 files. now everything works perfect ...