sony DVP-FX820 as CD source?

[cat6man]

anyone familiar with the audio line out sound from the
Sony DVP-FX820 or Panasonic DVD-LS83

it is a portable DVD player that i'm thinking
might replace my old portable CD player in
my travel system.

while many people have migrated to digital portable memory players,
i still find a need to carry CDs with me as i never know what i want
to travel with until the last minute, when it's too late to copy
CDs to an ipod, etc.

line out will be sent to my new predator (replacing much bulkier cosmic headroom +
even heavier battery pack) and etymotics

seems like this is a useful way to play CDs and have a lightweight dvd player as well (are there others that compete with this anyone can recommend?)

main difference i can see is that panasonic unit plays mp4/dvix video as well as dvd format (perhaps sony does also, but i don't see it listed).........in any case, my main interest is
in quality of audio line out.

thanks