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Established 1999

Sound-O-Mat Media

We use US Media and NW Media and products exclusively. US made and guaranteed to play everywhere. Available in wide variety of colors, sizes and shapes, as listed below.

Recycling

We encourage everyone to find ways to reuse old CD/Rs and DVDs, as decorations or art projects. An estimated 1 billion discs are sent to landfills every year, where it is estimated they will take 450 years to decompose.

For those so inclined, GreenDisk offers compact disc recycling services for a fairly reasonable fee, if you or your company produces many unused or unneeded discs. They charge $0.20 per pound (US $5.95) minimum to recycle and it's well worth it.

Respect, reuse, recycle, and leave no trace.

And now, a quick introduction to...

The World of CDR Media

5" (128mm) CDRs

3" (80mm) CDRs

3-inch or 80mm discs hold 21 minutes of audio (about 95250 sectors, or 186MB). They function okay in many players, but sometimes not in portables. They can also be a problem with "slot feed" players. If 3 inch-to-5 inch adapaters were still available, it would be an option, but for whatever reason they've disappeared. Most 80mm discs are used for the Sony Maciva digital cameras.

There appear to be 80mm discs that hold 34 minutes (just shy of 300MB), but these come with the same caveats as 90-minute 120mm discs: the discs have to be constructed at or outside the limits of what the specifications allow, and you may have problems with compatibility.

Many burners more than a year old have problems with them as well. We use the regular tray with our Yamaha 4416 at 4x speed without any problems. Our Plextor 8/20 (a top-of-the-line SCSI drive) refuses to accept 80mm discs when we put them in the tray. I was able to use them with a caddy adapter.

Business card CDRs

There are two basic sizes of "business card" or "hockey rink" CDRs. The length is always 80mm (same size as a 3" CD) and the width is either 61mm (50MB capacity) or 63mm (52MB capacity).

CDR Capacity

CD/DVD Media Discussion Forums

CD Media World for lots of great information

Disc4You Forums