No, the Widget doesn't have a variable rotational speed ( 3600 RPM constant speed +-3%)- it uses the same GCR (group code recording) as known from other Apple mass storage devices. The problem with the widget is the doubled track density- the Widget uses only one platter/2 surfaces/ 612 tracks/17 sectors/ 532 Bytes per sector. the 10 MB Profile with a Seagate ST 412 HDU has 2 platters/4 surfaces/306 tracks/17 sectors/ 532 Bytes/sector. The higher track density of the Widget was only possible with a new developed voice coil actuator using a DTF (dynamic track following) system with an optical servo. This was one of the first hard disks using a voice coil actuator. The Profile uses a stepper actuator without a DTF system. I have made the experience that the 5 MB Profile (Seagate ST 506 DU) is much more reliable than the 10 MB Profile- thanks to the half track density (153 tracks instead of 306) Most of these old 10 MB Profiles can be repaired by a simple low level format.
on 04.11.2005 23:24 Uhr, [EMAIL PROTECTED] at [EMAIL PROTECTED] wrote: > It seems that the ProFile is a much more reliable drive. Is it because the > Widget has some type of variable rotation speed, like the Twiggy? -- LisaList is sponsored by <http://lowendmac.com/> and... Shop buy.com and save. <http://lowendmac.com/ad/buy.com.html> Support Low End Mac <http://lowendmac.com/lists/support.html> LisaList info: <http://lowendmac.com/lists/lisa.html> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[email protected]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/lisalist%40mail.maclaunch.com/> iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com