No es que solo sean dolby digital 5.1, es que son pistas de DVD, son a 448 kbps
Código:
Disc Title: LA ESPADA DEL DRAGON
Disc Size: 20.910.654.741 bytes
Protection: AACS
BD-Java: No
Extras: 50Hz Content
BDInfo: 0.5.8
PLAYLIST REPORT:
Name: 00001.MPLS
Length: 2:02:14.000 (h:m:s.ms)
Size: 20.127.602.688 bytes
Total Bitrate: 21,96 Mbps
VIDEO:
Codec Bitrate Description
----- ------- -----------
MPEG-4 AVC Video 19998 kbps 1080p / 24 fps / 16:9 / High Profile 4.1
AUDIO:
Codec Language Bitrate Description
----- -------- ------- -----------
Dolby Digital Audio Spanish 448 kbps 5.1 / 48 kHz / 448 kbps / DN -4dB
Dolby Digital Audio Chinese 448 kbps 5.1 / 48 kHz / 448 kbps / DN -4dB
SUBTITLES:
Codec Language Bitrate Description
----- -------- ------- -----------
Presentation Graphics Spanish 29,948 kbps