Nah - think you missed the point.

 

"3 GByte/s" is virtually impossible with current technology - we are at 3 Gbit/s today and most all current SATA drives will outperform any/all SSD drives on throughput. Burst rates may favor SSDs but to pay 30 times the price for the same capacity to save perhaps 5 seconds (if that) on a typical SD DVD project where not even a mere 3.5MB/s is needed is bonkers.

 you can write a lot if data to SSD in 2ms because SSD has 0 seek times

Ah! - but only the seek time on a SSD may be virtually zero - the actual constant throughput I have seen and experienced with SSD drives when compared to a 10000rpm SATA2 drives can at best be described as mediocre to close to that of the SATA drive and nothing as amazing as people would like to think because of the interface limitations.

 ............... and in most all benches/comparisons I have seen so far, the non-SSD drive formatting strategy used (allocation unit size) that is known to have a real big influence on accessing smaller chunk of data, have never even been mentioned or taken into account.

 

 Its a question of trying to compare apples with apples - eg - Microsoft is currently still only in the process of developing optimized SSD drive management strategies for Windows 7 (possibly Vista too)