Strange Marks On A CD-R

I back up a lot of photos on CD-Rs. Recently while viewing some photos, I got some CRC errors. I looked at the underside of the CD and saw this!

I do not know what this is or what caused it, but it looked like some sort of stress pattern.  It cannot be wiped off.  Maybe it is due to the months of storage in a cardboard box in hot and humid weather.  Plain and simply I have no idea.

Checking through all my other photo CD-Rs,  there was only one other disc that looked like it was at the beginning stages of forming this pattern.  Both discs were TDK Inkjet Printable CD-R80.  The second disc still worked perfectly though.  I have other TDK CD-Rs that look fine and work fine too.

NOTE:  Even though other brands of CD-Rs have not shown this pattern,  some of them still die.  I have made it a point to have duplicates of everything.  I am seriously considering buying several external  hard disks for long term storage though.


Update: 31/05/2010
I needed to burn some stuff onto a CD.  So I opened up a new jewel cased TDK CD-R.  It had the same marks as well.  I proceeded to open ALL my TDK CD-Rs and ALL of them have the same marks.  Either I got a bad batch or TDK makes very bad inkjet printable CD-Rs. 

Look! A Three Headed Elephant!

A famous and very lucky pirate once said "Look behind you, a three headed monkey!". 

I have yet to see the three headed monkey that Guybrush was talking about.

But I was fortunate enough to go to a place called Erawan in Bangkok(at least I think it is still in Bangkok), where there is a big statue of a three headed elephant.  I am unsure whether Erawan is the name of the elephant or just the name of the place, but it was an impressive statue.

There is a museum inside the elephant itself but we did not have the time this time to visit inside.  Apart from being a tourist attraction it is also a place where people go to pray.

Being a big statue and very high up,  I just had to see what 20x zoom can do.

The statue is quite close to the main road as this shot shows.

Linux Pepsi

Way back when I first installed RedHat 5 Linux Distro, I found GIMP and started playing around with it. This was the result. Free time is great!

 Unfortunately I lost the original Pepsi logo that I modified.

Not quite full moon

This shot was taken without a tripod at full zoom.  The image stabiliser on the SX1 is amazing.

Big Red Ants