Hi BSL
Thanks for downloading trakaxpc.
1)Yes you can edit/crop audio and video in trakaxpc.
In the media browser just double click on the audio or video clip you want to use and it will be brought into trakkutter. ( see screenshot)
Once the media clip is trakkutter, just hold down the shift key on your keyboard and while holding down the left button on your mouse, move the mouse to create a selection box. This selection can be adjusted in size to create the edit you want.
Once you have created your selection, right click on it and select copy and then go into the mixing screen and select paste. Your edited media is now in the mixing screen ready to mix. ( see screenshot)
2) Yes you can mix the audio files mp3,wav,wma,ogg and the video files wmv, avi, and certain mpgs.
Just drag and drop them into the mixing screen from the media broswer. Once they are in the mixing screen you mix them anyway you want to create your own audio or video mix.(see screenshot)
3) we do have many videos on our site which give you a good understanding of how the software works, you can access them at the following link
http://www.trakax.com/software/support/create_a_quick_mix/
or you can access them at the following forum post
http://www.trakax.com/software/forum/viewthread/12/
I hope this helps you get started and if you have any more questions, please do not hesitate to contact us.
Best regards
Cormac