5 1 1.1 1800 130 1877 71 1948 LP 34 1982 CD CD 1999 1.2
Vol. 10 (2005) 6 CD Mini Disc( MD) ( ) 2 Web 2003 Digital Audio Laboratory 2.1 1 CD 90 2.2 ( )
7 (, 2000, pp. 58-61) 2.3 JASRAC JASRAC 3000, 2004, p. 130 2.4 DRM = Digital Rights Management( )
Vol. 10 (2005) 8 ( )DRM DRM DRM (P2P) P2P P2P P2P NapsterWinMXWinny (, 2002, PSP ) CD(CCCD) 3 1999 BMG (1999 ) 3.1 3.1.1 1996 1998 1999 MP3.com 1 1998 1400
MP3.com CD CD (, 2003, pp. 208-211) 3.1.2 Apple itunes Music Store itunes Music StoreApple 2003 4 itunes 1 99 2004 12 1 1 99 1 9.99 5 100 CD-R CD itunes Music Store 1 itunes Music Store 199 1 2 2002 P2P CD CD-R itunes Music Store 9
Vol. 10 (2005) Macintosh Macintosh % Macintosh Macintosh itunes Music Store 3.2 3.2.1 CD 1996 CD 1998 CD 3 1 CD 1 (, 2004, ) 10
11 1999 CD 7000 CD 751 4 CD 1 CD CD CD CD 3.2.2 bitmusic 1999 MP ( SME) 1999 7 SME 1999 12 20 bitmusic 4 4.1 2004 2003 12 6,000 2004 2 6,2844 (15 79 )
Vol. 10 (2005) 12 PHS 43,027 52.1 22,397 48.1% 51.9% 39.3% 2004 10 14 10 24 2,007 ( 44.9 54.0 35.0 ) 86.5 51.5 6.0 34.0 64.4 6 20 1 3 2004 4.2 2 PC 54.3 PC 51.9
13 2 5 200411 1/3 2000 2004 2000 SME bitmusic BMG 2004 MSN NTT
Vol. 10 (2005) Mora Mora 18 10 (SNS) SNS (, 2004, ) DRM 1 100 amazon.co.jp (, 2004, ) mixi GREE SNS 3 3 3 (N=40) WMA ATRAC3 MP3 WMA& 10 9 ATRAC3 WMA& MP3 9 6 5 1 14
WMA Windows Media Audio 1/20 ATRAC3 Adaptive TRansform Acoustic Coding3 1/10 MP3 MPEG AUDIO Layer3 ISO IEC MPEG MPEG-1 CD 1/11 MP3 CD MP3 ATRAC3 MAGIQLIP2 MAGIQLIP2 WMA Windows Media Player Windows Media Player Windows MAGIQLIP ATRAC3 WMA ATRAC3 Windows Media Player MP3 MP3 ATRAC3 ATRAC3 WMA 4 (N=11) ATRAC3 ATRAC3&WMA WMA 6 4 1 ( )WMA 2004 WMA 15
Vol. 10 (2005) 1 100 368 210 5 1 (N=40) 6 Web Money Web Money 6 (N=101) Web Smash LIO Edy Money 32 25 13 8 6 6 5 3 3 6 2004 11 17 Mora EMI 2004 12 22 Mora OpenMG ( ) 16
CD CD-DA 1 10 OpenMG 3 / CD CD-DA SonicStage 2.3 for Mora EMI Mora NTT OCN MUSIC STORE EMI 5 CD 12 20 11 19 au(kddi) 1 1 300 1 UMe Digital2004 11 23 4 Universal Music Entertainment UMe EP UMe Digital UMe Digital 1 CD 2005 40 British Phonographic Industry (BPI) 3 730 175 BPI 26 2003 Apple Computer ipod Apple itunes Music Store Sony ConnectNapster BPI 1 25 BPI BPI 9 12 17
Vol. 10 (2005) 18 7 itunes bit music 7.1 ( ) 24 CD CD CD CD 7.2 2000 2004 2000 2004 2004 2 1
1 Apple 1 6124 92 1 270 400 5201 2003 4 itunes Music Store 2004 7 1 Apple itunes Music Store itunes Music Store Apple 20034 2004 10 199 15000 1 105 141 itunes Music Store2005 3 2003 Sony Music Entertainment bitmusic 6 1 200 1 5 bitmusic 30% 5 3 1 4000 600 CD 1000 CD 1 150 1 250 CD MD 19
Vol. 10 (2005) CD CD 2 1 1 RIAA 2003 7 4590 830 2 2712 8813 10 1 (, 2004, 2004 ) 1 itunes Music Store 1970 itunes Music Store Apple 10 1 1 1 150 15 2 4 9 1 20
40 1 250 1 99 350 0 368 ( )WMA ATRAC3MP3 3 DRM MP3 Web Money CD 1215 (,, 2004, pp. 106-117) More 10 itunes Music Store100 7.3 2 3 12 13 36 20 (, 2004) DRM ipod 3 600 21
Vol. 10 (2005) 8000 2 ipod (,, 2004, pp. 106-117) itunes,,, (2004).. 9245pp. 106-117. (2004).. http://www.ipse-m.com/ 20041127. (2002). PSP. http://www.a-brain.com/hp/rep/rep12/index.html2004116. (2004). http://recommuni.jp/ 20041017. (2004).. 2004 pp.137-142. :. (2004). 336. http://www.itmedia.co.jp/mobile/articles/0412/15/news037.html/20041215., Phil Keys, (2004). NO885pp.121-145. (2004). 2004. http://japan.cnet.com/news/media/story/0,2000047715,20070307,00.htm2004106. (2001).. http://www.nri.co.jp/opinion/r_report/itnavi2006/pdf/itnavi2006_11.pdf2004105. 22
(2004).. Vol.28pp. 43-44. (2004). 2003. http://www.emd.gr.jp/business/column/column010.htm2004105. (2004).. :. (2000).. :. 23