There are, of course, many CD's that are Dolby Surround or DTS encoded, which are mixed for surround listening, but the vast majority are not and thus, can benefit from the application of Dolby Pro-Logic II enhancement.
E nwere n'ezie ọtụtụ CD nke bụ Dolby Surround ma ọ bụ DTS, nke a na-agwakọta nke na-ege ntị gburugburu, ma ọnụ ọgụgụ ka ukwuu bụ na ọ bụghị ya, nwere ike irite uru site na ngwa ngwa nke Dolby Pro-Logic II.