7
CD
STEP(
8
1/8, 1/4
1/2 
DVD/VCD 
CD
( 
) 
•
5 
•
30 
•
, 
. 
( 
) 
•
( 
) 
•
( 
)1
DVD, VCD
CD
DVD 2X, 4X, 8X, 16X, 32X, 128X
VCD 4X, 8X
CD 2X, 4X, 8X
•
DVD
•
VCD2.0 
VCD1.1
CD
•
VCD
15
5
5
18 | 19 |
7CDSTEP(
81/8, 1/41/2
DVD/VCD CD
( )
•5
•30
•, . ( )
•
( )
•( )1
DVD, VCDCDDVD 2X, 4X, 8X, 16X, 32X, 128X
VCD 4X, 8X
CD 2X, 4X, 8X
•DVD
•VCD2.0 VCD1.1CD
•VCD155
5
18 | 19 |