Teac, which makes CDs and DVDs, will release on Nov. 7 its MP-330 miniature-CD/MP3 player. The $129 devices allows people to play digital-audio files or to use miniature CD-recordable discs. The player runs for up to seven hours on two AA batteries and offers anti-shock protection. According to Japan-based Teac, mini CD-Rs cost less than $1.50 each. Teac is also expanding its line of CD-R media with a 10-pack of 8cm Mini CD-Rs for $12.99.