Yo Marcos: [not Ferdinand?]
I use the Yam 2816 and had to learn how to save the song after doing the stereo track since the directions are very ambiguous.
So, when you finish recording, you do the stereo track. When you are happy with all the settings, YOU HAVE TO SAVE THE STEREO SONG IMMEDIATELY. If you leave the program to go elsewhere, you may lose the tune.
I've found that whenever the unit asks you "do you want to save the song, SAVE IT.
When you do a song in the stereo track, and save it when you are happy with the settings, it goes to the stereo track song list.
But, you have to hit the "NEW" button when you are going through the CDR sequence; then, you go to the display of song track and hit enter and use the jog wheel and VOILA, you will see the title of the song you saved or "songs" you've saved.
A couple of days ago I remastered about 9 songs from old cassette tapes and put them into the stereo track, one at a time, and saved each one right after I was happy with the playback.
Also, if you don't push right button, leave the "input" sections and got to "record layering" you won't be able to hear the stereo track in your cans.
I hope I've helped and not confused as I'm sure the 4416 and 2816 work in a similar fashion.
Green Hornet