i have a video that has 2 audio streams..what does that mean?

[vincy]

i have an AVCHD video..then using mediainfo. i found out that it has 2 audio streams..first and second audio streams both say "224 kbps, 48. kHz, 16 bits, 2 channels, AC-3'..now what does 2 audio streams do with my video?

and when i play it with windows media player, the dolby digital plus logo appears in the lower left corner..again what does that mean? just a newbie..please bear with me..thank you

[Baldrick]

Different audio languages? Try play with vlc and you can switch audio tracks(Under audio-> audio track).

[vincy]

alright..thank you Baldrick..i see..thank you very much..now i got an idea of what 2 audio streams means
but how about the dolby digital plus logo appears in the lower left corner of the windows media player? mediainfo says 2 channels, AC-3..isnt dolby digital plus means surround sound? i hope my question makes sense..

[El Heggunte]

isnt dolby digital plus means surround sound?

Nope AC-3 can have 1, 2, 3, 4 or 5 channels, plus an optional LFE (a.k.a. .1 ) channel