Frame Rates

[Kewrock]

Hi guys.
For NTSC, what's the difference between 29.97 and 23.97. The disk is made at 29.97, and default on the encoder is 29.97. But I see a lot of rips at 23.97. What's the advantages and disadvantages of the lower number. In simplest terms please.
I did a thread search, didn't see anything........Thanks

[signals]

It depends on how the content was encoded. If you select "same as source" you will usually have no problems. 23.97 is usually filmed content (movies) 29.97 usually shot with a video camera (some TV shows, concert videos), but these are not hard and fast rules (many modern NTSC video cameras have a film mode that shoots at 23.97 ).