RS
GF(2
m
)
RS(Reed-Solomon)(Galois FieldGF)RS
CD-ROMGF(2
m
) = GF(2
8
)
GF(2
8
)25601254
P
(
x
)
0CD-ROMGF(2
8
)
(131)
GF(2
8
)
α = (0 0 0 0 0 0 1 0)
[13.1] GF(2
3
)
α = 0
α
3
α1 = 0
α
3
= α1
GF(2
3
)
0
mod(α
3
α1) = 0
α
0
mod(α
3
α1) = α
0
= 1
α
1
mod(α
3
α1) = α
1
α
2
mod(α
3
α1) = α
2
α
3
mod(α
3
α1) = α1
