Toshiba Unveils 80GB 'iPod drive'

sushant_bhatia_progr writes "The Register has an article about a new 80GB drive from Toshiba. Toshiba says it will ship an 80GB 1.8in hard drive in Q3 2005 - a year after it introduced the 60GB version that can currently to be found inside the iPod Photo. The 80GB HDD - model number MK8007GAH - comes in a 7.9 x 5.4 x 0.8cm casing. Toshiba will ship a 40GB version - model number MK4007GAL - that's just 0.5cm thick in the second quarter. It's lighter, too: 51g to the 80GB HDD's 62g. Toshiba's current 40GB and 60GB (model numbers MK4004GAH and MK6006GAH, respectively) 1.8in HDDs are 0.8cm thick, so the new drive should make for thinner mid-range iPods. Both drives spin at 4200rpm, offer an average seek time of 15ms and operate across an Ultra DMA 100 interface. They can take 500G operating shock and 1500G non-operating shock."

Comments

Re:shock values

[KDan]

it's an acceleration rate. G = 9.8m/s.

After a 1s fall, any object will be falling at 9.8m/s (constant acceleration for 1 s, starting at 0, will give that speed). It will also have travelled 4.9m.

If the iPod was stopped, say by the ground, in 10ms (probably in the right order of magnitude. Might be slightly shorter or longer depending the type of ground, whether you have a shock-absorbant casing around it, etc), it would have to take an acceleration of 9.8m/s / 0.01s = 980m/s^2 for 0.01s. That would be an acceleration of 980/9.8 = 100Gs.

So from 5m height, if the ipod falls straight on its side and the shock absorption of that floor + casing stops the ipod in 10ms, the acceleration will be 100Gs. if it stopped in 1ms, it would be 1000Gs.

Feel free to make your own measurements of the time it takes for the ipod to stop :-)

Daniel

Re:finally "collection in a box"?

[ChocoboKnight]

Apple does support a lossless compression format with the iPod.

With iTunes 4.7 http://www.apple.com/itunes/, you can encode to Apple Lossless Format, which can compress to half the space an uncompressed song would.