Yep, I got my weapon up to 50 and added another extra 15% damage against machines.
I couldn't figure out what the first option was...
but if I remember correctly then it should be something like this.
1st Option: ??
2nd Option: Beast
3rd Option: Machine
4th Option: Dark
Let's just make things clear here...
There are two stats shown on the first page of a weapon, those are attack and hitrating, right? As for armor, defense and guard/blockrate? or possibly evasion?
And for other people that might want to learn one thing or another:
Those items that looks like discs and go under the classification of armor can be equipped, depending on how many 'slots' your equipped armor has... The amount of slots is usually 0-3, but some armors tend to have even higher amounts of slots...
Now one disk can be equipped per slot, so choose carefully which ones to equipp... I tend to get alot of +Mind and +Ice Resistance disks...
I haven't played for too long, but there probably are rare disks that increase other stats such as attack or... I can't think of anything else...