They need to be high quality and bid only if you have more than 100 videos. Price will be based on how good your videos are.
1)Size: 640x360 (youtube standard)
2)Between 1:30 to 2:30 minutes
3)High quality (at least normal)
4)No watermarks (only when video is good quality and watermark is at the bottom of the video and not more than 40px high)
5)No ads or text in the beginning of the video nor the end.
6)Sexy videos without xxx content - soft videos where girls kiss etc.
Please post YTVID keyword when bidding to check if you have read this ad in full.
I forgot to add closer description - video services is the right one for this.