What is CDTV?
27-Jun-93 20:56:35
Sb: #104969-What is CDTV?
Fm: Ron Legro 75136,2066
To: David Goldstrom 70632,3271
David: I picked up a CDTV on closeout, too. I'm using it with my VCR as a
video titler and to play CDTV-based games.
Basically, it's a 1-meg (all chip RAM) A500 with a CD-ROM drive built into
it. It'll play CD audio discs, CD+G audio/graphic discs, CD-MIDI discs,
CDTV discs (about 100 available including games, an encylcopedia, image
discs, MOD discs, interactive storybooks for kids, etc. etc.) and some Mac
and PC discs (it won't run their software, but will access data on many
such discs).
Of course the advantage of CD-ROM is that it holds 600 megabytes on one
disc. You can get the entire Fred Fish collection on one CD-ROM for $40
and even boot up Workbench with it. Safe Harbor mail order has a
reasonable collection of CDTV discs and CD-ROM discs that'll work with the
unit. I suggest "Sherlock Holmes, Consulting Detective" as an excellent
game with some interactive video sequences.
Using the shareware Parnet device (and a special cable to hook up the
parallel ports), you can network a CDTV to any conventional Amiga, which
lets it act as a CD-ROM file server. Parnetting CDTV to your A500, for
instance, would let you access files on the CDTV via your A500, using its
keyboard and mouse. Cheaper than buying a keyboard and mouse for the CDTV
itself.
Non-compatibility issues: CDTV at present only runs Workbench 1.3. The
CD-ROM driver uses up a bit of RAM so a one meg A500 has a bit more free
RAM than a 1 meg CDTV. There is only one accelerator board I'm aware of
that works with CDTV (see below). You need to put discs into a CD-ROM
"caddy" before inserting into the machine, just as on many CD-ROM drives
available for Macs and PCs. Caddies cost about 8 bucks each; you can of
course get along with just one caddy. Hook CDTV up to your stereo system
and it'll play regular audio CDs very nicely, and if your TV set is on,
you'll see an on-screen control menu while the audio CD is playing; you
can control the CD via the remote.
Otherwise, CDTV is almost identical to a plain vanilla A500. One
advantage: It's got color composite output built in, so you can dump stuff
directly to videotape or use your TV set as a monitor. If you do any video
titling or other video stuff as I do, this is nice. The CDTV remote
control device does double duty as a mouse and joystick.
If you get a standard Amiga external floppy drive and plug it into the
rear drive port, you can run almost any Amigaware that'll run on an
equivalent A500. For $99, Commodore will (until end of June, I think —
call the Commodore Express 800 number and ask) sell you a keyboard,
diskette drive, mouse and Amiga system and application software. The
package is tailored for the CDTV (the keyboard and mouse are painted black
and use CDTV's special plug-ins; you can use an ordinary Amiga mouse or
keyboard only if you buy a third-party adapter; one such adapter is called
the Brickette).
As for authoring CDTV software, Amigavision Professional has CDTV hooks
and will let you develop CDTV applications. However, you'd need to add a
hard drive and memory to the CDTV to run AV Pro, which needs about 4 megs
RAM. I think Scala and Showmaker also will fairly easily do CDTV type
programs. You dump the finished work to a removeable hard drive, ship it
to Commodore, and they master the CDTV disc for you. There's also a firm
in Texas that does it. The applications can, of course, be interactive.
There are a couple of SCSI interfaces for the CDTV expansion port on the
rear to let you add a hard drive. Also, the Blizzard board 8 meg RAM
expander/accelerator will work in CDTV. There's a CDTV-specific genlock
available, too.
Any printer or modem will plug right into the CDTV parallel and serial
ports. Any MIDI device will plug into the MIDI ports, for making music.
Didn't you get a CDTV "Welcome Disc" and manual with your closeout? Call
Commodore Express and see if you can get a set without buying a CDTV.
— Ron Legro, Milwaukee
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