diff --git a/src/machine/m_at_286_386sx.c b/src/machine/m_at_286_386sx.c
index 5f8229ccc..05c700fb8 100644
--- a/src/machine/m_at_286_386sx.c
+++ b/src/machine/m_at_286_386sx.c
@@ -204,7 +204,7 @@ machine_at_neat_ami_init(const machine_t *model)
 {
     int ret;
 
-    ret = bios_load_linear("roms/machines/ami286/amic206.bin",
+    ret = bios_load_linear("roms/machines/ami286/AMIC206.BIN",
 			   0x000f0000, 65536, 0);
 
     if (bios_only || !ret)
@@ -404,8 +404,8 @@ machine_at_spc4216p_init(const machine_t *model)
 {
     int ret;
 
-    ret = bios_load_interleaved("roms/machines/spc4216p/7101.u8",
-				"roms/machines/spc4216p/ac64.u10",
+    ret = bios_load_interleaved("roms/machines/spc4216p/7101.U8",
+				"roms/machines/spc4216p/AC64.U10",
 				0x000f0000, 131072, 0);
 
     if (bios_only || !ret)
@@ -662,7 +662,7 @@ machine_at_spc6033p_init(const machine_t *model)
 {
     int ret;
 
-    ret = bios_load_linear("roms/machines/spc6033p/phoenix.bin",
+    ret = bios_load_linear("roms/machines/spc6033p/phoenix.BIN",
 			   0x000f0000, 65536, 0x10000);
 
     if (bios_only || !ret)
diff --git a/src/machine/m_at_386dx_486.c b/src/machine/m_at_386dx_486.c
index 8c5d89c7f..ae9b364bd 100644
--- a/src/machine/m_at_386dx_486.c
+++ b/src/machine/m_at_386dx_486.c
@@ -503,7 +503,7 @@ machine_at_ali1429_init(const machine_t *model)
 {
     int ret;
 
-   ret = bios_load_linear("roms/machines/ami486/ami486.bin",
+   ret = bios_load_linear("roms/machines/ali1429/ami486.BIN",
 			  0x000f0000, 65536, 0);
 
     if (bios_only || !ret)
@@ -1490,7 +1490,7 @@ machine_at_itoxstar_init(const machine_t *model)
 {
     int ret;
 
-    ret = bios_load_linear("roms/machines/itoxstar/stara.rom",
+    ret = bios_load_linear("roms/machines/itoxstar/STARA.ROM",
 			   0x000c0000, 262144, 0);
 
     if (bios_only || !ret)
@@ -1548,7 +1548,7 @@ machine_at_arb1479_init(const machine_t *model)
 {
     int ret;
 
-    ret = bios_load_linear("roms/machines/arb1479/1479a.rom",
+    ret = bios_load_linear("roms/machines/arb1479/1479A.rom",
 			   0x000c0000, 262144, 0);
 
     if (bios_only || !ret)
diff --git a/src/machine/m_at_slot1.c b/src/machine/m_at_slot1.c
index 9c286ec79..9b494af54 100644
--- a/src/machine/m_at_slot1.c
+++ b/src/machine/m_at_slot1.c
@@ -45,7 +45,7 @@ machine_at_p65up5_cpknd_init(const machine_t *model)
 {
     int ret;
 
-    ret = bios_load_linear("roms/machines/p65up5/ndkn0218.awd",
+    ret = bios_load_linear("roms/machines/p65up5/NDKN0218.AWD",
 			   0x000e0000, 131072, 0);
 
     if (bios_only || !ret)
diff --git a/src/machine/m_at_slot2.c b/src/machine/m_at_slot2.c
index 84c789990..4a1babf74 100644
--- a/src/machine/m_at_slot2.c
+++ b/src/machine/m_at_slot2.c
@@ -119,7 +119,7 @@ machine_at_fw6400gx_init(const machine_t *model)
 {
     int ret;
 
-    ret = bios_load_linear("roms/machines/fw6400gx/fwgx1211.rom",
+    ret = bios_load_linear("roms/machines/fw6400gx/FWGX1211.ROM",
 			   0x000c0000, 262144, 0);
 
     if (bios_only || !ret)
diff --git a/src/machine/m_at_socket5.c b/src/machine/m_at_socket5.c
index f987bd7ab..2c663cd01 100644
--- a/src/machine/m_at_socket5.c
+++ b/src/machine/m_at_socket5.c
@@ -316,7 +316,7 @@ machine_at_pat54pv_init(const machine_t *model)
 {
     int ret;
 
-    ret = bios_load_linear("roms/machines/pat54pv/pat54pv.bin",
+    ret = bios_load_linear("roms/machines/pat54pv/PAT54PV.bin",
 			   0x000f0000, 65536, 0);
 
     if (bios_only || !ret)
diff --git a/src/machine/m_at_socket7.c b/src/machine/m_at_socket7.c
index 70865044f..3918f4858 100644
--- a/src/machine/m_at_socket7.c
+++ b/src/machine/m_at_socket7.c
@@ -179,11 +179,11 @@ machine_at_tc430hx_init(const machine_t *model)
 {
     int ret;
 
-    ret = bios_load_linear_combined2("roms/machines/tc430hx/1007dh0_.bio",
-				     "roms/machines/tc430hx/1007dh0_.bi1",
-				     "roms/machines/tc430hx/1007dh0_.bi2",
-				     "roms/machines/tc430hx/1007dh0_.bi3",
-				     "roms/machines/tc430hx/1007dh0_.rcv",
+    ret = bios_load_linear_combined2("roms/machines/tc430hx/1007DH0_.BIO",
+				     "roms/machines/tc430hx/1007DH0_.BI1",
+				     "roms/machines/tc430hx/1007DH0_.BI2",
+				     "roms/machines/tc430hx/1007DH0_.BI3",
+				     "roms/machines/tc430hx/1007DH0_.RCV",
 				     0x3a000, 128);
 
     if (bios_only || !ret)
@@ -285,7 +285,7 @@ machine_at_p65up5_cp55t2d_init(const machine_t *model)
 {
     int ret;
 
-    ret = bios_load_linear("roms/machines/p65up5/td5i0201.awd",
+    ret = bios_load_linear("roms/machines/p65up5/TD5I0201.AWD",
 			   0x000e0000, 131072, 0);
 
     if (bios_only || !ret)
@@ -586,7 +586,7 @@ machine_at_i430vx_init(const machine_t *model)
 {
     int ret;
 
-    ret = bios_load_linear("roms/machines/430vx/55xwuq0e.bin",
+    ret = bios_load_linear("roms/machines/430vx/55XWUQ0E.BIN",
 			   0x000e0000, 131072, 0);
 
     if (bios_only || !ret)
diff --git a/src/machine/m_at_socket7_3v.c b/src/machine/m_at_socket7_3v.c
index 261ce333e..19b60bdbb 100644
--- a/src/machine/m_at_socket7_3v.c
+++ b/src/machine/m_at_socket7_3v.c
@@ -131,8 +131,8 @@ machine_at_gw2katx_init(const machine_t *model)
 {
     int ret;
 
-    ret = bios_load_linear_combined("roms/machines/gw2katx/1003cn0t.bio",
-				    "roms/machines/gw2katx/1003cn0t.bi1", 0x20000, 128);
+    ret = bios_load_linear_combined("roms/machines/gw2katx/1003CN0T.BIO",
+				    "roms/machines/gw2katx/1003CN0T.BI1", 0x20000, 128);
 
     if (bios_only || !ret)
 	return ret;
diff --git a/src/machine/m_at_socket8.c b/src/machine/m_at_socket8.c
index 135630700..6bacefb43 100644
--- a/src/machine/m_at_socket8.c
+++ b/src/machine/m_at_socket8.c
@@ -169,11 +169,11 @@ machine_at_vs440fx_init(const machine_t *model)
 {
     int ret;
 
-    ret = bios_load_linear_combined2("roms/machines/vs440fx/1018CS1_.bio",
-				     "roms/machines/vs440fx/1018CS1_.bi1",
-				     "roms/machines/vs440fx/1018CS1_.bi2",
-				     "roms/machines/vs440fx/1018CS1_.bi3",
-				     "roms/machines/vs440fx/1018CS1_.rcv",
+    ret = bios_load_linear_combined2("roms/machines/vs440fx/1018CS1_.BIO",
+				     "roms/machines/vs440fx/1018CS1_.BI1",
+				     "roms/machines/vs440fx/1018CS1_.BI2",
+				     "roms/machines/vs440fx/1018CS1_.BI3",
+				     "roms/machines/vs440fx/1018CS1_.RCV",
 				     0x3a000, 128);
 
     if (bios_only || !ret)
@@ -203,11 +203,11 @@ machine_at_ap440fx_init(const machine_t *model)
 {
     int ret;
 
-    ret = bios_load_linear_combined2("roms/machines/ap440fx/1011CT1_.bio",
-				     "roms/machines/ap440fx/1011CT1_.bi1",
-				     "roms/machines/ap440fx/1011CT1_.bi2",
-				     "roms/machines/ap440fx/1011CT1_.bi3",
-				     "roms/machines/ap440fx/1011CT1_.rcv",
+    ret = bios_load_linear_combined2("roms/machines/ap440fx/1011CT1_.BIO",
+				     "roms/machines/ap440fx/1011CT1_.BI1",
+				     "roms/machines/ap440fx/1011CT1_.BI2",
+				     "roms/machines/ap440fx/1011CT1_.BI3",
+				     "roms/machines/ap440fx/1011CT1_.RCV",
 				     0x3a000, 128);
 
     if (bios_only || !ret)
@@ -315,7 +315,7 @@ machine_at_p65up5_cp6nd_init(const machine_t *model)
 {
     int ret;
 
-    ret = bios_load_linear("roms/machines/p65up5/nd6i0218.awd",
+    ret = bios_load_linear("roms/machines/p65up5/ND6I0218.AWD",
 			   0x000e0000, 131072, 0);
 
     if (bios_only || !ret)
diff --git a/src/machine/m_ps1.c b/src/machine/m_ps1.c
index ca444421c..4c5c26dbc 100644
--- a/src/machine/m_ps1.c
+++ b/src/machine/m_ps1.c
@@ -488,7 +488,7 @@ ps1_setup(int model)
 		      ps1_read, NULL, NULL, ps1_write, NULL, NULL, ps);
 
 	rom_init(&ps->high_rom,
-		 "roms/machines/ibmps1_2121/fc0000.bin",
+		 "roms/machines/ibmps1_2121/FC0000.BIN",
 		 0xfc0000, 0x40000, 0x3ffff, 0, MEM_MAPPING_EXTERNAL);
 
 	/* Initialize the video controller. */
@@ -546,7 +546,7 @@ machine_ps1_m2121_init(const machine_t *model)
 {
     int ret;
 
-    ret = bios_load_linear("roms/machines/ibmps1_2121/fc0000.bin",
+    ret = bios_load_linear("roms/machines/ibmps1_2121/FC0000.BIN",
 			   0x000e0000, 131072, 0x20000);
 
     if (bios_only || !ret)
diff --git a/src/machine/m_xt.c b/src/machine/m_xt.c
index ede52cf6f..1e4e7bd39 100644
--- a/src/machine/m_xt.c
+++ b/src/machine/m_xt.c
@@ -330,7 +330,7 @@ machine_xt_pc4i_init(const machine_t *model)
 {
     int ret;
 
-    ret = bios_load_linear("roms/machines/pc4i/NCR_PC4i_BIOSROM_1985.bin",
+    ret = bios_load_linear("roms/machines/pc4i/NCR_PC4i_BIOSROM_1985.BIN",
 			   0x000fc000, 16384, 0);
 
     if (bios_only || !ret)
diff --git a/src/scsi/scsi_buslogic.c b/src/scsi/scsi_buslogic.c
index b05a57bb7..fcc19a1d6 100644
--- a/src/scsi/scsi_buslogic.c
+++ b/src/scsi/scsi_buslogic.c
@@ -231,7 +231,7 @@ typedef struct {
 
 
 enum {
-	CHIP_BUSLOGIC_ISA_542_1991,
+    CHIP_BUSLOGIC_ISA_542_1991,
     CHIP_BUSLOGIC_ISA_542,
     CHIP_BUSLOGIC_ISA,
     CHIP_BUSLOGIC_MCA,
@@ -1586,7 +1586,7 @@ buslogic_init(const device_t *info)
     {
 	case CHIP_BUSLOGIC_ISA_542_1991:
 		strcpy(dev->name, "BT-542B");
-		bios_rom_name = "roms/scsi/buslogic/BT-542B_BIOS.rom";
+		bios_rom_name = "roms/scsi/buslogic/BT-542B_BIOS.ROM";
 		bios_rom_size = 0x4000;
 		bios_rom_mask = 0x3fff;
 		has_autoscsi_rom = 0;
diff --git a/src/scsi/scsi_ncr5380.c b/src/scsi/scsi_ncr5380.c
index 7a6cd5ef9..e232e3684 100644
--- a/src/scsi/scsi_ncr5380.c
+++ b/src/scsi/scsi_ncr5380.c
@@ -45,7 +45,7 @@
 
 #define LCS6821N_ROM	"roms/scsi/ncr5380/Longshine LCS-6821N - BIOS version 1.04.bin"
 #define RT1000B_810R_ROM	"roms/scsi/ncr5380/Rancho_RT1000_RTBios_version_8.10R.bin"
-#define RT1000B_820R_ROM	"roms/scsi/ncr5380/RTBIOS82.rom"
+#define RT1000B_820R_ROM	"roms/scsi/ncr5380/RTBIOS82.ROM"
 #define T130B_ROM	"roms/scsi/ncr5380/trantor_t130b_bios_v2.14.bin"
 #define T128_ROM	"roms/scsi/ncr5380/trantor_t128_bios_v1.12.bin"
 
diff --git a/src/scsi/scsi_ncr53c8xx.c b/src/scsi/scsi_ncr53c8xx.c
index 35a46381e..db54f1422 100644
--- a/src/scsi/scsi_ncr53c8xx.c
+++ b/src/scsi/scsi_ncr53c8xx.c
@@ -47,7 +47,7 @@
 
 
 #define NCR53C8XX_SDMS3_ROM	"roms/scsi/ncr53c8xx/NCR307.BIN"
-#define SYM53C8XX_SDMS4_ROM	"roms/scsi/ncr53c8xx/8xx_64.ROM"
+#define SYM53C8XX_SDMS4_ROM	"roms/scsi/ncr53c8xx/8xx_64.rom"
 
 #define HA_ID		  7
 
diff --git a/src/sound/midi_mt32.c b/src/sound/midi_mt32.c
index a012236c5..c41942574 100644
--- a/src/sound/midi_mt32.c
+++ b/src/sound/midi_mt32.c
@@ -69,14 +69,14 @@ mt32emu_return_code mt32_check(const char* func, mt32emu_return_code ret, mt32em
 int mt32_available()
 {
         if (roms_present[0] < 0)
-                roms_present[0] = (rom_present("roms/sound/mt32/mt32_control.rom") && rom_present("roms/sound/mt32/mt32_pcm.rom"));
+                roms_present[0] = (rom_present("roms/sound/mt32/MT32_CONTROL.ROM") && rom_present("roms/sound/mt32/MT32_PCM.ROM"));
         return roms_present[0];
 }
 
 int cm32l_available()
 {
         if (roms_present[1] < 0)
-                roms_present[1] = (rom_present("roms/sound/cm32l/cm32l_control.rom") && rom_present("roms/sound/cm32l/cm32l_pcm.rom"));
+                roms_present[1] = (rom_present("roms/sound/cm32l/CM32L_CONTROL.ROM") && rom_present("roms/sound/cm32l/CM32L_PCM.ROM"));
         return roms_present[1];
 }
 
diff --git a/src/video/vid_ati28800.c b/src/video/vid_ati28800.c
index 23ec0a2c5..f4a40f89e 100644
--- a/src/video/vid_ati28800.c
+++ b/src/video/vid_ati28800.c
@@ -43,9 +43,9 @@
 #endif
 
 #define BIOS_ATIKOR_PATH	"roms/video/ati28800/atikorvga.bin"
-#define BIOS_ATIKOR_4620P_PATH_L	"roms/machines/spc4620p/31005h.u8"
-#define BIOS_ATIKOR_4620P_PATH_H	"roms/machines/spc4620p/31005h.u10"
-#define BIOS_ATIKOR_6033P_PATH	"roms/machines/spc6033p/phoenix.bin"
+#define BIOS_ATIKOR_4620P_PATH_L "roms/machines/spc4620p/31005h.u8"
+#define BIOS_ATIKOR_4620P_PATH_H "roms/machines/spc4620p/31005h.u10"
+#define BIOS_ATIKOR_6033P_PATH	"roms/machines/spc6033p/phoenix.BIN"
 #define FONT_ATIKOR_PATH	"roms/video/ati28800/ati_ksc5601.rom"
 #define FONT_ATIKOR_4620P_PATH	"roms/machines/spc4620p/svb6120a_font.rom"
 #define FONT_ATIKOR_6033P_PATH	"roms/machines/spc6033p/svb6120a_font.rom"
diff --git a/src/video/vid_cl54xx.c b/src/video/vid_cl54xx.c
index 1a90dc8d5..620f5e8dc 100644
--- a/src/video/vid_cl54xx.c
+++ b/src/video/vid_cl54xx.c
@@ -54,10 +54,10 @@
 #define BIOS_GD5430_DIAMOND_A8_VLB_PATH	"roms/video/cirruslogic/diamondvlbus.bin"
 #define BIOS_GD5430_PATH		"roms/video/cirruslogic/pci.bin"
 #define BIOS_GD5434_DIAMOND_A3_ISA_PATH	"roms/video/cirruslogic/Diamond Multimedia SpeedStar 64 v2.02 EPROM Backup from ST M27C256B-12F1.BIN"
-#define BIOS_GD5434_PATH		"roms/video/cirruslogic/gd5434.bin"
+#define BIOS_GD5434_PATH		"roms/video/cirruslogic/gd5434.BIN"
 #define BIOS_GD5436_PATH		"roms/video/cirruslogic/5436.vbi"
 #define BIOS_GD5440_PATH		"roms/video/cirruslogic/BIOS.BIN"
-#define BIOS_GD5446_PATH		"roms/video/cirruslogic/5446BV.VBI"
+#define BIOS_GD5446_PATH		"roms/video/cirruslogic/5446bv.vbi"
 #define BIOS_GD5446_STB_PATH		"roms/video/cirruslogic/stb nitro64v.BIN"
 #define BIOS_GD5480_PATH		"roms/video/cirruslogic/clgd5480.rom"
 
diff --git a/src/video/vid_et4000.c b/src/video/vid_et4000.c
index 740be207e..b1649b67d 100644
--- a/src/video/vid_et4000.c
+++ b/src/video/vid_et4000.c
@@ -54,7 +54,7 @@
 #include <86box/vid_svga_render.h>
 
 
-#define BIOS_ROM_PATH		"roms/video/et4000/et4000.bin"
+#define BIOS_ROM_PATH		"roms/video/et4000/ET4000.BIN"
 #define KOREAN_BIOS_ROM_PATH 	"roms/video/et4000/tgkorvga.bin"
 #define KOREAN_FONT_ROM_PATH 	"roms/video/et4000/tg_ksc5601.rom"
 #define KASAN_BIOS_ROM_PATH 	"roms/video/et4000/et4000_kasan16.bin"
diff --git a/src/video/vid_oak_oti.c b/src/video/vid_oak_oti.c
index c7b475c70..c0dbe6610 100644
--- a/src/video/vid_oak_oti.c
+++ b/src/video/vid_oak_oti.c
@@ -31,7 +31,7 @@
 #include <86box/vid_svga_render.h>
 
 #define BIOS_037C_PATH		"roms/video/oti/bios.bin"
-#define BIOS_067_AMA932J_PATH	"roms/machines/ama932j/oti067.bin"
+#define BIOS_067_AMA932J_PATH	"roms/machines/ama932j/OTI067.BIN"
 #define BIOS_067_M300_08_PATH	"roms/machines/m30008/EVC_BIOS.ROM"
 #define BIOS_067_M300_15_PATH	"roms/machines/m30015/EVC_BIOS.ROM"
 #define BIOS_077_PATH		"roms/video/oti/oti077.vbi"
diff --git a/src/video/vid_s3.c b/src/video/vid_s3.c
index 30c0df216..5e6e32867 100644
--- a/src/video/vid_s3.c
+++ b/src/video/vid_s3.c
@@ -40,15 +40,15 @@
 #define ROM_ORCHID_86C911		"roms/video/s3/BIOS.BIN"
 #define ROM_DIAMOND_STEALTH_VRAM	"roms/video/s3/Diamond Stealth VRAM BIOS v2.31 U14.BIN"
 #define ROM_AMI_86C924			"roms/video/s3/S3924AMI.BIN"
-#define ROM_METHEUS_86C928		"roms/video/s3/928.vbi"
+#define ROM_METHEUS_86C928		"roms/video/s3/928.VBI"
 #define ROM_SPEA_MIRAGE_86C801		"roms/video/s3/V7MIRAGE.VBI"
 #define ROM_SPEA_MIRAGE_86C805		"roms/video/s3/86c805pspeavlbus.BIN"
 #define ROM_MIROCRYSTAL8S_805		"roms/video/s3/S3_805VL_ATT20C491_miroCRYSTAL_8s_ver1.4.BIN"
 #define ROM_MIROCRYSTAL10SD_805		"roms/video/s3/MIROcrystal10SD_VLB.VBI"
-#define ROM_MIROCRYSTAL20SV_964_VLB		"roms/video/s3/S3_964VL_BT485_27C256_miroCRYSTAL_20sv_ver1.2.bin"
-#define ROM_MIROCRYSTAL20SV_964_PCI		"roms/video/s3/mirocrystal.VBI"
-#define ROM_MIROCRYSTAL20SD_864_VLB		"roms/video/s3/Miro20SD.BIN"
-#define ROM_PHOENIX_86C80X		"roms/video/s3/805.vbi"
+#define ROM_MIROCRYSTAL20SV_964_VLB	"roms/video/s3/S3_964VL_BT485_27C256_miroCRYSTAL_20sv_ver1.2.bin"
+#define ROM_MIROCRYSTAL20SV_964_PCI	"roms/video/s3/mirocrystal.VBI"
+#define ROM_MIROCRYSTAL20SD_864_VLB	"roms/video/s3/Miro20SD.BIN"
+#define ROM_PHOENIX_86C80X		"roms/video/s3/805.VBI"
 #define ROM_PARADISE_BAHAMAS64		"roms/video/s3/bahamas64.bin"
 #define ROM_PHOENIX_VISION864		"roms/video/s3/86c864p.bin"
 #define ROM_DIAMOND_STEALTH64_964	"roms/video/s3/964_107h.rom"
@@ -67,7 +67,7 @@
 #define ROM_MIROVIDEO40SV_ERGO_968_PCI	"roms/video/s3/S3_968PCI_TVP3026_miroVideo40SV_PCI_1.04.BIN"
 #define ROM_SPEA_MERCURY_P64V		"roms/video/s3/S3_968PCI_TVP3026_SPEAMecuryP64V_ver1.01.BIN"
 #define ROM_NUMBER9_9FX_771		"roms/video/s3/no9motionfx771.BIN"
-#define ROM_PHOENIX_VISION968	"roms/video/s3/1-DSV3968P.BIN"
+#define ROM_PHOENIX_VISION968		"roms/video/s3/1-DSV3968P.BIN"
 
 enum
 {
diff --git a/src/video/vid_tgui9440.c b/src/video/vid_tgui9440.c
index da60f20fa..579e9f93f 100644
--- a/src/video/vid_tgui9440.c
+++ b/src/video/vid_tgui9440.c
@@ -75,7 +75,7 @@
 #include <86box/vid_svga.h>
 #include <86box/vid_svga_render.h>
 
-#define ROM_TGUI_9400CXI	"roms/video/tgui9440/9400CXI.vbi"
+#define ROM_TGUI_9400CXI	"roms/video/tgui9440/9400CXI.VBI"
 #define ROM_TGUI_9440		"roms/video/tgui9440/BIOS.BIN"
 #define ROM_TGUI_96xx		"roms/video/tgui9660/Union.VBI"
 
diff --git a/src/video/vid_tvga.c b/src/video/vid_tvga.c
index 36420aeab..58836275a 100644
--- a/src/video/vid_tvga.c
+++ b/src/video/vid_tvga.c
@@ -35,7 +35,7 @@
 #define TVGA9000B_ID		0x23
 #define TVGA8900CLD_ID		0x33
 
-#define ROM_TVGA_8900B		"roms/video/tvga/tvga8900B.VBI"
+#define ROM_TVGA_8900B		"roms/video/tvga/tvga8900b.vbi"
 #define ROM_TVGA_8900CLD	"roms/video/tvga/trident.bin"
 #define ROM_TVGA_9000B		"roms/video/tvga/tvga9000b.bin"