Glad to see you're talking about the two I use :-)

Adobe Premiere (with an 'e' at the end, it's a French thing) used to occasionally crash for me while I was on a 32-bit version of Windows, for lack of RAM. Since I switched to 64-bit and upped the RAM to around 16 GB on a system with 2 Xeon 6-core (x2 for hyperthreading, total of 24 logical cores), it's a screamer and has never failed me.

 

Exactly the same experience with PowerDirector. Used to be a bit troublesome with winXP 32-bit, had to up to 3 GB to at least get bye. Now with the 64 bit win7 and version 9 (not the latest, they're now at PowerDirector 10), and 8 GB RAM on this system, it just keeps going and going... I can't remember a hang or crash or other adverse reaction.

 

They're both in my select and elite category of "how could I ever have lived without it!?" category. But Premiere (in this cases CS5.5 Production Premium, the bundle) is several Grand. The stuff you need a boos to pay for ;-) ... I do like After Effects from that bundle too, and AE and Premiere go hand in hand together.

It really boils down to tis: There are quite a number of reat products, they are tools. Find a tool you like, and use it to its full potential.