WDC WD3200AAJS-41VWA0 module-2E error

[drdoc]

Model : WDC WD3200AAJS-41VWA0
Serial : WD-WCARW5542632
Firmware : 58.01D01
Capacity : 298.09 GB (625 142 448)

why do these drives that seem to work report as having module 2E errors ?
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Id :Copy: Importance: ABA :Size:Read : Hdr : CS : CS Value : Vers. : Desription
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....
002D: 0 : Dr : 3627: 300:Yes :Error: Ok : C44FCF85 :00020004:Debug Log
002D: 1 : Dr : 3627: 300:Yes :Error: Ok : C44FCF85 :00020004:Debug Log
002E: 0 : B : 3927: 300:Yes :Error: Ok : 2A0E13F3 :00020004:Loaded part of microprogram code
002E: 1 : B : 3927: 300:Yes :Error: Ok : 2A0E13F3 :00020004:Loaded part of microprogram code
0068: 0 : : 4227: 70:Yes : Ok : Ok : D641671B :00810004:
0068: 1 : : 4227: 70:Yes : Ok : Ok : D641671B :00810004: