Hello tushar4544,
Welcome to the
DZ forum
From the information provided in
this thread, it seems that even though many tracks are flagged for copyright on YouTube most claims are released. In other words, there are no real ill-effects from using the background music, aside from a little inconvenience.
If you purchase the Ultra or Ultime version (perpetual), you don't have free access to all the background music or the add-on packs.
The best thing to do is to use
this comparison table to inform your decision. Certainly, if there's anything that's unclear, don't be afraid to ask here.
PIX
PIX YouTube channel