Professional trumpet player facts?

The serial number is 108038. It is mostly brass w/some silver on the body and a silver band around the bell. It is old and was taken very good care of because it has some laquer missing, but it sounds great!

I have Sonic, Meda Player,Windows Media Player on my computer & I used to be able to record & play cd/dvd s .... but now my computer says it needs a decoder ? What is that ? Do I need to buy a new dvd player /...

Its a question for a mental health professional (for substance abuse and depression). Would like to know which should be seen first? a Doctor, psychologist, psychiatrist, consulor, social worker?

What is the difference between Media Player and Real Player? I have a laptop Windows XP. Wireless. A Dell. I have to use a cell phone to connect to the internet because the internet card configuration was funny...