Jam is a RedBook CD authoring program. Audio CDs only, and does all the track timing, crossfading and PQ editing that CD Architecht does.
As it requires Toast as it's host platform, one can burn data discs with Toast with the package.
It looks that there is a nice waveform view in Toast with Jam 6. Hit the Roxio site.
Now, regarding burning data discs
to send to mastering, one should send, usually, the unsequenced mixes as data files (these days usually 24 bit files, which of course can't be sent as an audio disc anyway.) As mentioned before, audio CDs have no real error correction, and thus are prone to really unreliable transfer of audio data. Data files have error correction.
Look at it this way, one minute of 16 bit 44.1 kHz audio (CD standard) takes up about 10MB of space. CD-R blanks that can hold 700MB of data can hold 80 minutes (800MB, right?) of music. So, where does that other 100MB go when burning data? Error correction.
So, burn RedBook audio CDs if you need to in something like Jam or CD Architecht, but if you're sending tracks to be worked on, not a final copy for duplication, use data files instead.
(And if you're making your own RedBook masters, be 100% sure you're making them exactly as you want the finished CDs to be - they will be basically exact copies of your master disc. Listen to it very carefully once down to make sure the burn was perfect, too...)