Dynamic Mobile CD Music Attributes Database

Abstract

Technology related to CD (compact disc) players are described. In one instance, a handheld CD player includes a CD drive to receive a CD and to determine a CD identification from the CD and a media slot to receive a portable memory card having a database. The handheld CD player also includes an attributes access module configured to retrieve music attributes from the database associated with the CD identification and to store the CD identification in the database if the CD identification is not already in the database.

1 - 16 . (canceled) 
   
   
       17 . One or more computer-readable media having computer-executable instructions stored thereon that, when executed, direct one or more computers to perform a method for broadcasting data over a computer network, the method comprising:
 determining a CD identification from a CD (compact disc);   searching for the CD identification in a database;   storing the CD identification on a portable storage medium if the CD identification is not found in the database.   
   
   
       18 . One or more computer-readable media as recited in  claim 17 , the method further comprising:
 retrieving music attributes from the database that are associated with the CD identification, if the CD identification is found in the database;   displaying the music attributes.   
   
   
       19 . One or more computer-readable media as recited in  claim 17 , wherein the database is located on the portable storage medium. 
   
   
       20 . One or more computer-readable media as recited in  claim 17 , wherein the searching further comprises:
 accessing the portable storage medium;   transferring the database from the portable storage medium to a memory on a portable CD player; and   searching for the CD identification in a database on the portable CD player.   
   
   
       21 . One or more computer-readable media as recited in  claim 17 , wherein the portable storage medium is selected from the group comprising:
 an SD (secure digital) card;   a CF (compact flash) card;   a SmartMedia card;   a Memory Stick;   a MMC (multimedia card); and   a portable hard disc drive.   
   
   
       22 . One or more computer-readable media as recited in  claim 17 , wherein the determining further comprises calculating a TOC (table of contents) for the CD, the TOC comprising start and stop times for a plurality of tracks on the CD. 
   
   
       23 . One or more computer-readable media having computer-executable instructions stored thereon that, when executed, direct one or more computers to perform a method for broadcasting data over a computer network, the method comprising:
 determining a CD identification from a CD (compact disc);   searching a database for the CD identification;   in an event that the CD identification is not found in the database, requesting music attribute information associated with the CD identification from a content source;   updating the database with the music attribute information;   synchronizing a portable database on a portable storage medium with the updated database.   
   
   
       24 . One or more computer-readable media as recited in  claim 23 , wherein the method further comprises:
 in an event that the CD identification is not found in the database, requesting music attribute information associated with the CD identification from a content source;   updating the portable database on the portable storage medium with the music attribute information.   
   
   
       25 . One or more computer-readable media as recited in  claim 23 , wherein the determining further comprises calculating a TOC (table of contents) for the CD, the TOC comprising start and stop times for a plurality of tracks on the CD. 
   
   
       26 . One or more computer-readable media as recited in  claim 23 , wherein the portable storage medium is selected from the group comprising:
 an SD (secure digital) card;   a CF (compact flash) card;   a SmartMedia card;   a Memory Stick;   a MMC (multimedia card); and   a portable hard disc drive.   
   
   
       27 . A method comprising:
 determining a CD identification from a CD (compact disc);   searching for the CD identification in a database; and   if the CD identification is not found in the database, storing the CD identification on a portable storage medium.   
   
   
       28 . A method as recited in  claim 27 , further comprising:
 if the CD identification is found in the database, retrieving music attributes from the database that are associated with the CD identification; and   displaying the music attributes.   
   
   
       29 . A method as recited in  claim 27 , wherein the database is located on the portable storage medium. 
   
   
       30 . A method as recited in  claim 27 , wherein the searching further comprises:
 accessing the portable storage medium;   transferring the database from the portable storage medium to a memory on a portable CD player; and   searching for the CD identification in a database on the portable CD player.   
   
   
       31 . A method as recited in  claim 27 , wherein the determining further comprises calculating a TOC (table of contents) for the CD, the TOC comprising start and stop times for a plurality of tracks on the CD. 
   
   
       32 . A method comprising:
 determining a CD identification from a CD (compact disc);   searching a database for the CD identification;   requesting music attribute information associated with the CD identification from a content source if the CD identification is not found;   updating the database with the music attribute information; and   synchronizing a portable database on a portable storage medium with the updated database.   
   
   
       33 . A method as recited in  claim 32 , further comprising:
 locating the music attribute information in the database according to the CD identification if the CD identification is found in the database; and   updating the portable database on the portable storage medium with the music attribute information.   
   
   
       34 . One or more computer-readable media as recited in  claim 32 , wherein the portable storage medium is selected from the group comprising:
 an SD (secure digital) card;   a CF (compact flash) card;   a SmartMedia card;   a Memory Stick;   a MMC (multimedia card); and   a portable hard disc drive.