Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: other than packets what is the difference between bjx-8 and bjx-5
Document: The fact that the original packaging was not included does not ease my suspicion. Also, when I just clicked to double check and compare the models again, the links to the pictures are mysteriously not loading. I'm sure the product itself, whether it's a BJX-5 or BJX-8, is a good product but due to Amazon's dishonesty I have to take away some stars for the purchase.
I bought this BJX-8 to replace a BJX-5. I may have broken the BJX-5 so I wanted something I thought was a little more robust (from what I can tell in the picture) and thus a little more expensive. The model Amazon sent me did not come in original packaging and does not look like the one in the picture. In fact, it looks exactly like the BJX-5 I have at home (whose picture was accurate).
First, a correction to the description above:  This kit came with 8 packets of jerky cure and 8 seasoning packets, 2 each of teriyaki, cracked pepper and garlic, hot&spicy;, and original beef jerky flavor.
Raves from those I shared my jerky! Seasoning packets taste just like the popular brand. I think the 'original' is a tad salty, but just add 1.5 lbs of burger instead of the recommended 1.0lb. I have made about 5lbs of jerky so far (raw weight before dehydration).I added a bit of water (a tablespoon or two) to the seasonings before mixing and loading.
I asked them if they could tell me if they could figure out the expiration date based on the lot numbers on the packages because I wanted to make sure the ones this WayFair outfit sent me were not outdated. The Nesco rep told me that they don't put expiration dates on them because honestly they last indefinitely if stored in a cool dark environment. She said that they had used packets as old as 5 years and they were fine.
They lose a star for the waste. I haven't tried the included spice packets as I have my own mixture that I like.Ongoing Updates:29Jan14:80/20 ground chuck is WAY too greasy. I'm getting some of Laura's Lean 96/4 to try.31Jan14:The 95/5 ground beef is $1/lb more expensive than a bottom round roast. Ask the butcher dept if they will grind the roast for you instead. Warm the ground meat slightly to soften it.
Good little jerky gun. This item came with 8 jerky spice kits. Ran 2 lbs of ground meat through it without any trouble. Not that hard to clean.
I've run 8 lbs of beef through my gun so far and it works great. It's surprising how well the meat holds together without casing. The flavors of seasoning that come with the gun are all really good. I add a little creole and cayenne to them just to add a little kick. Great products.
My husband has been using a regular size gun that came with seasoning kit years ago for his beef jerky. It has always taken him hours to pipe out the quantity he normally makes. I saw this jumbo BJX-8 gun by Nesco and ordered immediately. He has used it several times now and it has cut his time by well over half! It does give you a workout though. His arm and hand were in need of a break between batches!
the jumbo jerky gun works great. 5lb elk and 5lb cheep ground meat it pump it out less then 5 min.
Answer: True, the number of packets and the measurements. The BJX-5 measures 11 1/2 x 3 x 6 1/5. And the BJX-8 measures 11.4 x 3.4 x 8.1 so maybe that could be the difference too? I am not sure if these measurements are correct as I got them off the product descriptions.