Many DVD players won't play MP3s on DVD without a playlist.
Roxio 7 does this well as will Acoustica CD Burner. Don't know about Roxio 8 as it's not a patch on Roxio 7.
You must finalise the discs to have any chance of success & don't use multi-session as I'm sure that won't work.
Also some players might be funny about RW media or not like DVD+R or not like DVD-R.