There is a bonus file 1mb in theory, which when downloaded is a file called "a" and there is nothing about it.

I was about to post about this "a" file (and such filename leads to difficulties for searching stuff about it, obviously)
I didnt realise it took the place of one of the bonus files, though.

here on the version i got, i copy paste its content:

freespace_2
unreal_tournament_goty
fallout_tactics
lionheart
max
capitalism_2
blake_stone_aog
oddworld_abes_oddysee
IL_2_sturmowik
comanche_hokum
pro_pinball_brusa
heroes_of_might_and_magic
might_and_magic_6_le
original_war
alien_nations
realms_of_arkania_3
republic_the_revolution
_temp_upload
combat_mission_BO
stonekeep
evil_genius
mdk_2
broken_sword_2
divine_divinity
kingdom
rainbow_six
far_cry
fallout_2
myst_masterpiece
1nsane
jagged_alliance_2_ub
ghost_master
bloodrayne_2
creatures_exodus
castles_1_2
waxworks
sensible_soccer_2006
fa18_super_hornet
septerra_core
port_royale_1
postal_cu
niematakiego23454
empire_earth
descent_3_expansion
teenagent
descent_1_descent_2
lure_of_the_temptress
screamer
igi_2_covert_strike
unreal_tournament_2004_ece
ghost_recon
heroes_of_might_and_magic_3
apache_havoc
gothic_2_gold
messiah
battle_chess_se
rise_of_the_triad
iron_storm
pazner_elite
personal_nightmare
earthworm_jim_1_2
ground_control_expansion
a
unreal_2
runaway
soldiers_heroes_of_ww2
tropico_reloaded
chessmaster_9000
the_longest_journey
prince_of_persia_sot
multi
earth_2150
beneath_a_steel_sky
shogo
simon_the_sorcerer
lords_of_magic
red_baron_pack
earthworm_jim_3d
postal_2
silent_hunter_2
dark_fall
flatout
celtic_kings
in_cold_blood
creatures_albian_years
tex_pandora_directive
conquest
painkiller_black_edition
unreal_gold
mig_alley
heroes_of_might_and_magic_2
jack_orlando
the_feeble_files
praetorians
warlords_battlecry_3
robinsons_requiem_collection
patrician_3
kingpin
commandos_ammo_pack
gothic
lords_of_the_realm_royal_edition
splinter_cell
stronghold_crusader
earth_2160
ishar_compilation
port_royale_2
giants
cannon_fodder
disciples_gold
shattered_steel
settlers_2_gold
mobile_forces
vr_soccer
simon_the_sorcerer_2
beyond_divinity
the_nations
broken_sword_3
blake_stone_ps
duke_nukem_mp
neighbours_from_hell
disciples_2_gold
advent_rising
fallout
psychonauts
patrician_1_2
megarace_3
sanitarium
jagged_alliance_2
knights_and_merchants_tpr
realms_of_arkania_1_2
jagged_alliance_dg
combat_chess
ufo_aftermath
toca_race_driver_3
jagged_alliance_2_wf
arx_fatalis
expendable
seven_kingdoms_2
capitalism_plus
haegemonia
ufo_aftershock
seven_kingdoms
earth_2140
commandos_2_3
settlers_heritage_of_kings
ground_control_2
judge_dredd_vs_death
hostile_waters
evolva
imperial_glory
the_guild_gold
incoming_and_incoming_forces
simon_the_sorcerer_3D
pure_pinball_2
second_sight
stronghold
sacred_gold
perimeter
bloodrayne_1
pro_pinball_fj
tex_murphy_1_2
mdk
colin_mcrae_rally_2005
sacrifice
obscure
darkstar_one
redneck_rampage_collection
oddworld_abes_exoddus
incredible_machines
a_nie_ma_takiego
tex_overseer
lords_of_the_realm_3
creatures_village
invictus
beyond_good_and_evil
duke_nukem_3d
jagged_alliance
gorky17
spellforce_platinum
die_by_the_sword_expansion
freespace
pro_pinball_ts
driver_parallel_lines
megarace_1_2
tex_under_a_killing_moon
stronghold_a
operation_flashpoint_goty
101_airborne

please note: this list has nothing to do with my account game list, because there are several titles in this list that are not on my game shelves so far. so what is it about ?

It's a placeholder for the manual, which is listed as 'coming soon'. I guess they couldn't have something listed under bonuses without having a corresponding 'bonus' to download, so they stuck up a dummy file while the manual's being written.

As for why the file is what it is... not a clue.

Thank you.