Even if the synchronization is stopped abruptly or the connection is not working well, you can still transfer the songs directly to your player. The important thing is to ensure all your files are in the correct format. By that, I mean they need to be in WMA, WMV, MP3 and MOV formats which are compatible with Zune. DivX is not the right format. So do take note.
Another reason why you should try to profit from the writing and sale of an Amazon Kindle eBook is because the devices are popular. I mean as of 2013, these things are really popular. As previously stated, owners can download books on the go. No cables are needed. And, since the Kindle weighs less than most paperback books, it is a hit! In fact, Amazon has had difficulty keeping these devices in stock. This goes to show how popular the Amazon Kindle is and how great the potential to profit from it is.
You can start out on ClickBank with a free account. Then you can promote and advertise for free, and get your business up and running. Then as you grow you business you can look to paid advertising to grow even more.