Here is a list of all namespaces with brief descriptions:

[detail level 1234]

Ncamera_names
NdaAttp_prm
NdaBgObj_prm
NdaCanBall_c
NdaDitem_prm
NdaGrass_prm
NdaItem_prm
NdaNpc_Msg_c
NdaObj
NdaObjCube_prm
NdaObjEff	Object Effect?
NdaObjLadder
NdaObjMovebox
NdaObjSwpush
NdaObjSwpush2
NdaObjTimer
NdaShopItem_prm
NdaTagChgRestart_prm
NdaTagMist_prm
NdaTagRestart_prm
NdaTagSpinner_prm
NdaTboxSw_prm
NdMpath_ColorCnv_n
NdMpath_HIO_n
NfopAcM
NfopMsg
▼Nhomebutton
Ngui
NJ3DModelSaverDataBase
NJ3DUD
NJAHioUtil
▼NJASBNKParser
NVer0
NVer1
NJASDriver
NJASDsp
NJASKernel
NJASResArcLoader
NJASThreadingModel
NJAWExtSystem
NJAWWindow3D
▼NJGadget
Nbinary
Nfloatingpoint_
Nsearch
Nvector
NJGeometry
Njhostio
NJMath
NJMathInlineVEC
NJMessage
NJStage
▼NJStudio
Nctb
Ndata
Nfunctionvalue
▼Nfvb
Ndata
Nmath
Nobject
▼Nstb
Ndata
NJStudio_JAudio2
NJStudio_JParticle
NJStudio_JStage
▼NJStudioCameraEditor
▼Ncsb
Ndata
NJStudioPreviewer
NJStudioToolLibrary
NJStudioToolLibrary_JStudio
NJUTAssertion
NJUtility
NmDoDvdHack
NmDoExt
NmDoMch
NnObjMHasu
▼Nnw4hbm
▼Ndb
Ndetail
▼Nlyt
Ndetail
Nres
▼Nmath
Nconvert
Ndetail
▼Nsnd
▼Ndetail
NBankFile
NSeqFile
NSoundArchiveFile
NStrmFile
NWaveFile
NWsdFile
▼Nut
Ndetail
NZ2Calc
Nzevwork