Weight Of 1 Petabyte

A petabyte is 1024 gigabytes or 1,125,899,906,842,624 bytes. There was a Slashdot story about how much one would weigh. So I looked up the weights of all the candidates I could think of, and made a chart:

Type	Size Bytes	Size GB	Weight Grams	Model	Number	Total Grams	Total lbs
MicroSD	17,179,869,184	16	0.27		58207.66	15716.07	34.65
SD	34,359,738,368	32	2		29103.83	58207.66	128.33
CF	34,359,738,368	32	3.3		29103.83	96042.64	211.74
2.5 HDD	500,000,000,000	466	98.8	ST9500325AS	2000	197600	435.63
MiniSD	4,294,967,296	4	1		232830.64	232830.64	513.3
1.8 HDD	250,000,000,000	233	62	MK2529GSG	4000	248000	546.75
Tape	800,000,000,000	745	210		1250	262500	578.71
Blu-Ray	50,050,629,632	47	16		19979.77	319676.3	704.77
3.5 HDD	2,000,000,000,000	1,863	655	ST32000542AS	500	327500	722.01
DVD	18,253,611,008	17	16		54783.68	876538.89	1932.44
CD	736,279,247	0.7	15		1358180.34	20372705.14	44914.13

Some notes, I went with the highest capacity version I could find. So for MicroSD it was 16GB, DVD was Dual side and layer, Blu-Ray was dual layer, tape 800GB. Also it was quite hard to find accurate weights for the flash memory. I weighed 2 SD cards and they seemed to be just under 2g each. I weighed a variety of CDs and DVDs and they ranged from 15-17g.

http://hardware.slashdot.org/story/09/07/08/2159259/How-Heavy-Is-a-Petabyte?from=rss