Just a philosophical question, because I know there is no way this suggestion wlil ever get implemented 
Why not CompactFlash memory instead of the horrible SDHC format?
From an engineering point of view, CF offers superior mechanical reliability. I have had SD cards snap coming out of, or being inserted into their readers, simply because they are too thin. Good brands too. CF offers a much better, and much more rugged package - size matters. It also helps that CF uses an ejector tab, instead of making you push the card in to release the spring (that's precisely where the card is weak).
The HMC150 is certainly big enough to accomodate CF, in fact dual CF would rock.
CF doesn't suffer from the "standard artificially limits us to 32GB" (used to be 2GB, transitioning from SD to SDHC) problem. Upgraded ATA, and soon to be SATA controllers on the CF cards solve this.
CF is FAST. Today's Sandisk Ultra series, their midrange product, blows away yesterday's Sandisk Extreme series, their high performance product. I have quite a few of both cards over the generations and I really enjoy the speed upgrades I get. Today's Sandisk Ultra 30MB really achieves 29-30MBytes/sec linear R/W speed for larger I/O blocks, until the card is very near saturation (about less than 100MB free space remaining). Of course today's current Extreme series has been upgraded to be incredibly fast (60-90MB!)
SD Class 6? What a laugh. (btw class 6 is 6MBytes/sec).
SD is really a consumer format meant for small, tiny camcorders. I can understand its use on say, my Canon HF100, but for my 150, it's a bit puzzling.
Anecdotally, I feel SD cards are also built to lower specs and price points. They are cheaper, but I have had 3 SD failures in the past 3 years and I have never had a CF card fail in ten years of shooting with them. (plus I have tons of CF, increasing the probability that I'll get a bad apple). I do not trust SD, full stop.
"Go P2" they say - perhaps. But a P2 workflow would add $1K to the price of my camera, $1K to the price of my media, and $1K extra for FCP since I can't 'get by' with FCE. Ouch... CF would only add say, $20 per card for big cards like 16-32GB, over the price of SDHC cards.
Personally I have come to accept SDHC as something I live with, but in a perfect world I'd love to have a HMC150 pushing AVCHD to dual CF slots as a mid-range solution short of a P2 workflow
Why not CompactFlash memory instead of the horrible SDHC format?
From an engineering point of view, CF offers superior mechanical reliability. I have had SD cards snap coming out of, or being inserted into their readers, simply because they are too thin. Good brands too. CF offers a much better, and much more rugged package - size matters. It also helps that CF uses an ejector tab, instead of making you push the card in to release the spring (that's precisely where the card is weak).
The HMC150 is certainly big enough to accomodate CF, in fact dual CF would rock.
CF doesn't suffer from the "standard artificially limits us to 32GB" (used to be 2GB, transitioning from SD to SDHC) problem. Upgraded ATA, and soon to be SATA controllers on the CF cards solve this.
CF is FAST. Today's Sandisk Ultra series, their midrange product, blows away yesterday's Sandisk Extreme series, their high performance product. I have quite a few of both cards over the generations and I really enjoy the speed upgrades I get. Today's Sandisk Ultra 30MB really achieves 29-30MBytes/sec linear R/W speed for larger I/O blocks, until the card is very near saturation (about less than 100MB free space remaining). Of course today's current Extreme series has been upgraded to be incredibly fast (60-90MB!)
SD Class 6? What a laugh. (btw class 6 is 6MBytes/sec).
SD is really a consumer format meant for small, tiny camcorders. I can understand its use on say, my Canon HF100, but for my 150, it's a bit puzzling.
Anecdotally, I feel SD cards are also built to lower specs and price points. They are cheaper, but I have had 3 SD failures in the past 3 years and I have never had a CF card fail in ten years of shooting with them. (plus I have tons of CF, increasing the probability that I'll get a bad apple). I do not trust SD, full stop.
"Go P2" they say - perhaps. But a P2 workflow would add $1K to the price of my camera, $1K to the price of my media, and $1K extra for FCP since I can't 'get by' with FCE. Ouch... CF would only add say, $20 per card for big cards like 16-32GB, over the price of SDHC cards.
Personally I have come to accept SDHC as something I live with, but in a perfect world I'd love to have a HMC150 pushing AVCHD to dual CF slots as a mid-range solution short of a P2 workflow