Reddit reviews Cowboy Bebop Remix, Volume 1

Yes the cat sound is different too.

The originals I have on dvd look like this...
I am pretty certain these are what was originally broadcast on adult swim back in the day.

The Blu-ray set I have is an updated reissue of the remix dvds that look like this... or this...

I'm glad I'm not just crazy and am not the only one that this bothers. If you want the old broadcast versions, hunt down the first dvds I linked.

Even though I have the series on blu-ray, I will never get rid of those for this very reason. Also because it was the first anime on dvd I ever purchased (sentimental value, to the max).

edit- All these I listed are American releases.