Waveform search not match the audio

Hello, I have recently purchased your player and will be using it to display tracks and live sets. However when they click on the part of the track that has the drop the actual placement of the audio and where the mouse clicks it is about a quarter inch off.

I would like to use this and not have to use soundcloud so i hope this can be fixed.

Also can you please tell me how I might be able to embed a download or buy button in the menu area so I can make my site a bit more streamline? That would be great. Thanks.