John Rivers
Active member
This came out of the recent thread referencing an article on the pros and cons of P2 and XDCAM (Blu-Ray) storage mediums. A good number of posts tend to mention how cost effective Blu-Ray is in comparison to P2.
So I did some number crunching...
COST COMPARISON OF XDCAM and P2 Media:
P2 COSTS
8GB P2 Card = $1350
4GB P2 Card = $600
CURRENT COST PER GB = $165
Lifecycle of P2 Card (as rated by Panasonic) = 100,000
Divide by 2 (to account for insert/removal in both camera and offload device)
= Actual Recording Lifecycle = 50,000
Total Potential Data Transfer of 8GB P2 Card = 400,000 GB (8GB Card x 50,000 recording and offloading sessions)
Cost to be able to record up to 400,000 GB worth of footage = $1350
Cost to backup said footage onto hard disk= $432,000
(derived from $2700 cost of 2.5TB LaCie Tower, multiplied by number needed to store 400,000GB, which is 160 units)
*let me add that this is being pretty generous, since I KNOW LaCie gives discounts off the list price when buying in bulk, so the actual cost would be less*
Total Cost to Record and Archve 400,000 GB with a single 8GB P2 CARD= $433,350
BLU-RAY COSTS
Scenario 1: Using Blu-Ray discs to both record and archive
23GB Sony Pro Disk = $30
Disks needed to record 400,000 GB worth of data = 17,392
Total Cost to Record and Archive 400,000 GB worth of data with Sony Blu-Ray XDCAM Disk= $521,739
CONCLUSION
An 8GB P2 has about a $90,000 cost savings for recording and archiving 400,000 GB of data compared with Sony's Blu-Ray XDCAM format.
These are the CURRENT estimated costs. Note that costs are going to fluctuate, so this will all be changing (obviously). With every P2 card update, assuming they follow a similar "double capacity for same cost every several months", the efficiency of the P2 card will DOUBLE (more data transferred per lifecycle). Hard Drive Storage prices only decrease, so though it will be necessary to buy twice as much storage, the cost to purchase will be lower, so the overall cost should either be similar or lower. I also didn't factor into the XDCAM cost analysis the price of equipment needed to use Blue-Ray. The article DID say that "you don’t need a special drive to transfer P2 data to your computer" (though such options are available), while with the XDCAM, there is the "deck needed to view and transfer content". This would increase the price of the Blu-Ray medium by at least $10,000. However, since I'm not POSITIVE that a special deck will be needed to offload footage, I'm just keeping this cost out. Just wanted to mention it, as it might well be a realistic added cost.
Read into this as you like, correct me if I'm wrong (because I am NOT a mathematician by any stretch). Is this a decently fair analysis of the cost differences? Hope this might lend to some discussions.
SCENARIO 2 - COSTS IF NOT USING BLU-RAY FOR ARCHIVING...
Sony Blu-Ray can be re-used up to 1000 times. So let's now assume that you didn't want to archive onto Blu-Ray then. How much would it cost to use Blu-Ray like P2 and record over the data, archiving onto external hard drives?
We'll give the Blu-Ray the same treatment we gave the P2 and cut the life cycle in half, meaning it's reusable 500 times.
23GB x 500 = 11,500GB data per disc can be recorded over the span of its life
How many discs would be needed then to record and archive 400,000GB of data? 400,000/11,500 = 34.78 (we'll say 35 discs) x $30 = $1043
Add in the archiving costs we applied to the P2 = $433,350
Total cost of reusing Blu-Ray Discs and archiving to external hard disks for 400,000GB worth of data = $434,393
*What this does is place Blu-Ray in the SAME cost bracket as P2 (heck, P2 is still a little less!). That's when you look at features. Personally, I think the P2's abilities for instant recording, hot-swapping, pre-recording, etc., make it a better option STILL. But then again, it's all user-preference. YOU decide!*
*All costs were obtained from various legitimate and authorized online retailers as of 5-10-2006*
So I did some number crunching...
COST COMPARISON OF XDCAM and P2 Media:
P2 COSTS
8GB P2 Card = $1350
4GB P2 Card = $600
CURRENT COST PER GB = $165
Lifecycle of P2 Card (as rated by Panasonic) = 100,000
Divide by 2 (to account for insert/removal in both camera and offload device)
= Actual Recording Lifecycle = 50,000
Total Potential Data Transfer of 8GB P2 Card = 400,000 GB (8GB Card x 50,000 recording and offloading sessions)
Cost to be able to record up to 400,000 GB worth of footage = $1350
Cost to backup said footage onto hard disk= $432,000
(derived from $2700 cost of 2.5TB LaCie Tower, multiplied by number needed to store 400,000GB, which is 160 units)
*let me add that this is being pretty generous, since I KNOW LaCie gives discounts off the list price when buying in bulk, so the actual cost would be less*
Total Cost to Record and Archve 400,000 GB with a single 8GB P2 CARD= $433,350
BLU-RAY COSTS
Scenario 1: Using Blu-Ray discs to both record and archive
23GB Sony Pro Disk = $30
Disks needed to record 400,000 GB worth of data = 17,392
Total Cost to Record and Archive 400,000 GB worth of data with Sony Blu-Ray XDCAM Disk= $521,739
CONCLUSION
An 8GB P2 has about a $90,000 cost savings for recording and archiving 400,000 GB of data compared with Sony's Blu-Ray XDCAM format.
These are the CURRENT estimated costs. Note that costs are going to fluctuate, so this will all be changing (obviously). With every P2 card update, assuming they follow a similar "double capacity for same cost every several months", the efficiency of the P2 card will DOUBLE (more data transferred per lifecycle). Hard Drive Storage prices only decrease, so though it will be necessary to buy twice as much storage, the cost to purchase will be lower, so the overall cost should either be similar or lower. I also didn't factor into the XDCAM cost analysis the price of equipment needed to use Blue-Ray. The article DID say that "you don’t need a special drive to transfer P2 data to your computer" (though such options are available), while with the XDCAM, there is the "deck needed to view and transfer content". This would increase the price of the Blu-Ray medium by at least $10,000. However, since I'm not POSITIVE that a special deck will be needed to offload footage, I'm just keeping this cost out. Just wanted to mention it, as it might well be a realistic added cost.
Read into this as you like, correct me if I'm wrong (because I am NOT a mathematician by any stretch). Is this a decently fair analysis of the cost differences? Hope this might lend to some discussions.
SCENARIO 2 - COSTS IF NOT USING BLU-RAY FOR ARCHIVING...
Sony Blu-Ray can be re-used up to 1000 times. So let's now assume that you didn't want to archive onto Blu-Ray then. How much would it cost to use Blu-Ray like P2 and record over the data, archiving onto external hard drives?
We'll give the Blu-Ray the same treatment we gave the P2 and cut the life cycle in half, meaning it's reusable 500 times.
23GB x 500 = 11,500GB data per disc can be recorded over the span of its life
How many discs would be needed then to record and archive 400,000GB of data? 400,000/11,500 = 34.78 (we'll say 35 discs) x $30 = $1043
Add in the archiving costs we applied to the P2 = $433,350
Total cost of reusing Blu-Ray Discs and archiving to external hard disks for 400,000GB worth of data = $434,393
*What this does is place Blu-Ray in the SAME cost bracket as P2 (heck, P2 is still a little less!). That's when you look at features. Personally, I think the P2's abilities for instant recording, hot-swapping, pre-recording, etc., make it a better option STILL. But then again, it's all user-preference. YOU decide!*
*All costs were obtained from various legitimate and authorized online retailers as of 5-10-2006*