No. With PRO, you have to purchase plays in 250,000 intervals. Plus and Basic both have unlimited plays.
MPEG Streamclip and Handbrake work well for conversion to MP4.
As for length limits, there are none! :)
You answered my questions very quickly and fully. Thank you. You can see my summary at
Is there unlimited plays on all three?
Do you have a recommended tool for preparing MP4 from other formats?
1. We prefer H.264 MP4 files. We accept other formats but don't provide support for them - mov, avi, wmv, prores, f4v, mpg
2. 500mb limit for Basic, 5GB limit for Plus and PRO. No length restrictions.
3. I'm not sure I understand?