I have 20 hours of music - all I want is that all the files would play equally per 24h.
How would you do it? Sorry - a bit strange question, but based on the 20 hours of music, you could recommend here something maybe?
The reminder over the planning a bit makes my mind messed atm.

Thanks!

_________________
O.S : Windows 7 64 Bits

Nope, can't do it. International law (not Radionomy rules) doesn't allow it. That's what the reminder over the planning is explaining.

Allow what?

The reminder is just saying I can't have more than 3 tracks by the same artist per 3 hours.

_________________
O.S : Windows 7 64 Bits

I think Avinu misread your original post as 20 tracks, not 20 hours.

Twenty hours of music, with the usual track length of 3 minutes, would be 400 tracks. It should be easy to make plannings with that. (Assuming they're not all the same song or the same artist.)

I'd make one box and put them all in it. The set the title constraint on that box to 900 minutes. Leave the artist constraint at 45. Make a clock with only that box and drag it to a new template Then try making a planning for a future date with that template. If it works, great; you can try raising the constraint to get more variety. If not, lower the constraint to 800 and try again.

If you get more artist repetition than you'd like you can try raising the artist constraint. That can get messy; takes a lot of experimentation to see what works.

When you're through delete the test plannings and create plannings for upcoming dates..

_________________
Radio Breezes
Live365 Refugee
Webcasting since 1999