Why should I get my project mastered?
Mastering gives your music professional clarity, punch and overall volume. It's fine tuning the music so you get a broadcast quality final product that is pleasing to the listener and will translate to any listening environment.
When I put the CD in my computer the names don't appear in iTunes?
The solution is here: http://www.gracenote.com/company/faq/
What's a DDP ?
DDP (Disc Description Protocol) is an image of your disc preparation or a "virtual CD".
This format is used by most disc replication plants to create copies of an album/CD.
The DDP is created by the mastering engineer and is delivered directly to the duplication house.
It includes all the metadata such as song markers, spacing, titles and ISRC codes.
How do I obtain an ISRC code?
RIAA.org site: https://usisrc.org